package/mender: install dbus authentication file if dbus is selected

While not a requirement to run mender itself, the mender-connect package
requires this file to be installed to talk to mender.

Signed-off-by: Adam Duskett <Aduskett@rivian.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 948e2c3467da778b7bf9b002f98fe2309a88d65a)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mender/mender.mk

@@ -76,6 +76,14 @@ endef
 
 MENDER_POST_INSTALL_TARGET_HOOKS += MENDER_INSTALL_CONFIG_FILES
 
+ifeq ($(BR2_PACKAGE_DBUS),y)
+define MENDER_INSTALL_DBUS_AUTHENTICATION_MANAGER_CONF
+	$(INSTALL) -D -m 0755 $(@D)/support/dbus/io.mender.AuthenticationManager.conf \
+		      $(TARGET_DIR)/etc/dbus-1/system.d/io.mender.AuthenticationManager.conf
+endef
+MENDER_POST_INSTALL_TARGET_HOOKS += MENDER_INSTALL_DBUS_AUTHENTICATION_MANAGER_CONF
+endif
+
 define MENDER_INSTALL_INIT_SYSTEMD
 	$(INSTALL) -D -m 0644 $(MENDER_PKGDIR)/mender-client.service \
 		$(TARGET_DIR)/usr/lib/systemd/system/mender-client.service