package/network-manager: add optional nmcli support

The network-manager package builds the nmcli utility when the readline
package is enabled. However, this is not necessarily obvious to the
user. Therefore, this commit adds an explicit option to enable the nmcli
tool, which automatically selects readline.

Signed-off-by: Michael Fischer <mf@go-sys.de>
[yann.morin.1998@free.fr: rewrap commit log and help text]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/network-manager/Config.in

@@ -33,6 +33,13 @@ config BR2_PACKAGE_NETWORK_MANAGER_TUI
 	help
 	  This option enables terminal based UI
 
+config BR2_PACKAGE_NETWORK_MANAGER_CLI
+	bool "nmcli support"
+	select BR2_PACKAGE_READLINE
+	help
+	  This option enables support for the NetworkManager Command
+	  Line Interface
+
 config BR2_PACKAGE_NETWORK_MANAGER_MODEM_MANAGER
 	bool "modem-manager support"
 	select BR2_PACKAGE_MODEM_MANAGER
@@ -50,7 +57,6 @@ config BR2_PACKAGE_NETWORK_MANAGER_OVS
 	select BR2_PACKAGE_JANSSON
 	help
 	  This option enables support for OpenVSwitch
-
 endif
 
 comment "NetworkManager needs udev /dev management and a glibc toolchain w/ headers >= 4.6, dynamic library, wchar, threads, gcc >= 4.9"

package/network-manager/network-manager.mk

@@ -142,7 +142,7 @@ else
 NETWORK_MANAGER_CONF_OPTS += --disable-polkit
 endif
 
-ifeq ($(BR2_PACKAGE_READLINE),y)
+ifeq ($(BR2_PACKAGE_NETWORK_MANAGER_CLI),y)
 NETWORK_MANAGER_DEPENDENCIES += readline
 NETWORK_MANAGER_CONF_OPTS += --with-nmcli
 else