package/bluez5_utils: install datafiles with correct permissions

The datafiles include the dbus policy, without which bluetoothd fails
to start (unless it is provided by other means):

# /usr/libexec/bluetooth/bluetoothd -n
bluetoothd[1011]: Bluetooth daemon 5.78
D-Bus setup failed: Connection ":1.7" is not allowed to own the service "org.bluez" due to security policies in the configuration file
bluetoothd[1011]: src/main.c:main() Unable to get on D-Bus

The installation issue 1a8676aa6e4b0e372a1a744eac6e53c90c03bf0e was
meant to fix is the result of upstream incorrectly installing
/etc/bluetooth with 0555 (strictly read-only) permissions.

Fixes: 1a8676aa6e4b0e372a1a744eac6e53c90c03bf0e

Signed-off-by: Fiona Klute (WIWA) <fiona.klute@gmx.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 421a92a8973d23b017293ea8b776d34fb54a6b5e)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/bluez5_utils/0002-Leave-config-files-writable-for-owner.patch

@@ -0,0 +1,35 @@
+From b1fd409960001a77cda2a09ecc00147ebd9c3667 Mon Sep 17 00:00:00 2001
+From: Fiona Klute <fiona.klute@gmx.de>
+Date: Mon, 9 Dec 2024 16:40:43 +0100
+Subject: [PATCH BlueZ] build: Leave config files writable for owner
+
+This is needed for builds running as non-root users, so the build
+process and any distribution tools can create/move/delete files in the
+config directory without adjusting permissions separately. Limiting
+writes from the running service needs to be done in the systemd unit
+(already the case) or init script.
+
+See also: https://lore.kernel.org/linux-bluetooth/4d1206df-598b-4a68-8655-74981b62ecca@gmx.de/T/
+Reviewed-by: Bastien Nocera <hadess@hadess.net>
+Upstream: https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=b1fd409960001a77cda2a09ecc00147ebd9c3667
+Signed-off-by: Fiona Klute (WIWA) <fiona.klute@gmx.de>
+---
+ Makefile.am | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile.am b/Makefile.am
+index 297d0774c..29018a91c 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -32,7 +32,7 @@ confdir = $(sysconfdir)/bluetooth
+ statedir = $(localstatedir)/lib/bluetooth
+ 
+ bluetoothd-fix-permissions:
+-	install -dm555 $(DESTDIR)$(confdir)
++	install -dm755 $(DESTDIR)$(confdir)
+ 	install -dm700 $(DESTDIR)$(statedir)
+ 
+ if DATAFILES
+-- 
+2.45.2
+

package/bluez5_utils/bluez5_utils.mk

@@ -13,6 +13,9 @@ BLUEZ5_UTILS_LICENSE = GPL-2.0+, LGPL-2.1+
 BLUEZ5_UTILS_LICENSE_FILES = COPYING COPYING.LIB
 BLUEZ5_UTILS_CPE_ID_VENDOR = bluez
 BLUEZ5_UTILS_CPE_ID_PRODUCT = bluez
+# required because 0002-Leave-config-files-writable-for-owner.patch
+# modifies Makefile.am
+BLUEZ5_UTILS_AUTORECONF = YES
 
 BLUEZ5_UTILS_DEPENDENCIES = \
 	$(if $(BR2_PACKAGE_BLUEZ5_UTILS_HEADERS),bluez5_utils-headers) \
@@ -22,7 +25,6 @@ BLUEZ5_UTILS_DEPENDENCIES = \
 BLUEZ5_UTILS_CONF_OPTS = \
 	--enable-library \
 	--disable-cups \
-	--disable-datafiles \
 	--disable-manpages \
 	--disable-asan \
 	--disable-lsan \