package/bluez5_utils: Clean up descriptions

The descriptions in this package have grown pretty confusing over time.
Try to make this a bit more consistent and up-to-date.

* drop references to old kernel versions not supported by BR anymore
* Remove "Bluez 5.x" string from options
* consistently use the term "plugin" (plugins implement profiles)
* make mentioned profile appreviations upper-case
* make descriptions closer to the ones in BlueZ Readme [0]
* make clear that "tests" refers to the python test scripts

[0] https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/README?h=5.58

Signed-off-by: Michael Nosthoff <buildroot@heine.tech>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Arnout:
 - remove more 5.x references;
 - Use official spelling BlueZ in main help text]

package/bluez5_utils/Config.in

@@ -1,5 +1,5 @@
 config BR2_PACKAGE_BLUEZ5_UTILS
-	bool "bluez-utils 5.x"
+	bool "bluez-utils"
 	depends on BR2_USE_WCHAR # libglib2
 	depends on BR2_TOOLCHAIN_HAS_THREADS # dbus, libglib2
 	depends on BR2_USE_MMU # dbus
@@ -9,17 +9,12 @@ config BR2_PACKAGE_BLUEZ5_UTILS
 	select BR2_PACKAGE_DBUS
 	select BR2_PACKAGE_LIBGLIB2
 	help
-	  bluez utils version 5.x
+	  BlueZ utils
 
-	  With this release BlueZ only supports the new Bluetooth
-	  Management kernel interface (introduced in Linux 3.4).
+	  Provides Stack, Library and Tooling for Bluetooth Classic
+	  and Bluetooth LE.
 
-	  For Low Energy support at least kernel version 3.5 is
-	  needed.
-
-	  The API is not backward compatible with BlueZ 4.
-
-	  Bluez utils will use systemd and/or udev if enabled.
+	  BlueZ utils will use systemd and/or udev if enabled.
 
 	  http://www.bluez.org
 	  http://www.kernel.org/pub/linux/bluetooth
@@ -31,7 +26,7 @@ config BR2_PACKAGE_BLUEZ5_UTILS_OBEX
 	depends on BR2_INSTALL_LIBSTDCPP
 	select BR2_PACKAGE_LIBICAL
 	help
-	  Enable the OBEX support in Bluez 5.x.
+	  Enable OBEX support.
 
 comment "OBEX support needs a toolchain w/ C++"
 	depends on !BR2_INSTALL_LIBSTDCPP
@@ -40,75 +35,77 @@ config BR2_PACKAGE_BLUEZ5_UTILS_CLIENT
 	bool "build CLI client"
 	select BR2_PACKAGE_READLINE
 	help
-	  Enable the Bluez 5.x command line client.
+	  Build the command line client "bluetoothctl".
 
 config BR2_PACKAGE_BLUEZ5_UTILS_DEPRECATED
-	bool "install deprecated tool"
+	bool "install deprecated tools"
 	depends on BR2_PACKAGE_BLUEZ5_UTILS_CLIENT
 	help
-	  Build BlueZ 5.x deprecated tools. These currently include:
+	  Build deprecated tools. These currently include:
 	  hciattach, hciconfig, hcitool, hcidump, rfcomm, sdptool,
 	  ciptool, gatttool.
 
 config BR2_PACKAGE_BLUEZ5_UTILS_EXPERIMENTAL
-	bool "build experimental obexd plugin"
+	bool "build experimental tools"
 	help
-	  Build BlueZ 5.x experimental Nokia OBEX PC Suite plugin
+	  Build experimental tools. This is currently only the
+	  "Nokia OBEX PC Suite tool". So, only if OBEX support is
+	  enabled this option has an effect.
 
 config BR2_PACKAGE_BLUEZ5_UTILS_PLUGINS_HEALTH
 	bool "build health plugin"
 	help
-	  Build BlueZ 5.x health plugin
+	  Build plugin for health profiles.
 
 config BR2_PACKAGE_BLUEZ5_UTILS_PLUGINS_MESH
-	bool "build mesh profile"
+	bool "build mesh plugin"
 	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12 # ell
 	select BR2_PACKAGE_ELL
 	select BR2_PACKAGE_JSON_C
 	select BR2_PACKAGE_READLINE
 	help
-	  Build BlueZ 5.x mesh plugin
+	  Build plugin for Mesh support.
 
 comment "mesh profile needs a toolchain w/ headers >= 4.12"
 	depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
 
 config BR2_PACKAGE_BLUEZ5_UTILS_PLUGINS_MIDI
-	bool "build midi profile"
+	bool "build midi plugin"
 	select BR2_PACKAGE_ALSA_LIB
 	select BR2_PACKAGE_ALSA_LIB_SEQ
 	help
-	  Build BlueZ 5.x midi plugin
+	  Build MIDI support via ALSA sequencer.
 
 config BR2_PACKAGE_BLUEZ5_UTILS_PLUGINS_NFC
 	bool "build nfc plugin"
 	help
-	  Build BlueZ 5.x nfc plugin
+	  Build plugin for NFC pairing.
 
 config BR2_PACKAGE_BLUEZ5_UTILS_PLUGINS_SAP
 	bool "build sap plugin"
 	help
-	  Build BlueZ 5.x sap plugin
+	  Build plugin for SAP profile.
 
 config BR2_PACKAGE_BLUEZ5_UTILS_PLUGINS_SIXAXIS
 	bool "build sixaxis plugin"
 	depends on BR2_PACKAGE_HAS_UDEV
 	help
-	  Build BlueZ 5.x sixaxis plugin (support Sony Dualshock
+	  Build sixaxis plugin (support Sony Dualshock
 	  controller)
 
 comment "sixaxis plugin needs udev /dev management"
 	depends on !BR2_PACKAGE_HAS_UDEV
 
 config BR2_PACKAGE_BLUEZ5_UTILS_TEST
-	bool "build tests"
+	bool "install test scripts"
 	help
-	  Build BlueZ 5.x tests
+	  Install the python test scripts from the "test" directory.
 
 config BR2_PACKAGE_BLUEZ5_UTILS_TOOLS_HID2HCI
 	bool "build hid2hci tool"
 	depends on BR2_PACKAGE_HAS_UDEV
 	help
-	  Build BlueZ 5.x hid2hci tool
+	  Build hid2hci tool
 
 comment "hid2hci tool needs udev /dev management"
 	depends on !BR2_PACKAGE_HAS_UDEV