bluez5_utils: Make systemd link correctly

The link in /etc/systemd/system/, named dbus-org.bluez.service, pointing to
../../../../usr/lib/systemd/system/bluetooth.service has one too many ".." in
it.  Likely the target was copied from the other link in
/etc/systemd/system/bluetooth.target.wants/, which is one level deeper.

Adjust link to be correct.

Signed-off-by: Trent Piepho <tpiepho@impinj.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/bluez5_utils/bluez5_utils.mk

@@ -116,7 +116,7 @@ define BLUEZ5_UTILS_INSTALL_INIT_SYSTEMD
 	mkdir -p $(TARGET_DIR)/etc/systemd/system/bluetooth.target.wants
 	ln -fs ../../../../usr/lib/systemd/system/bluetooth.service \
 		$(TARGET_DIR)/etc/systemd/system/bluetooth.target.wants/bluetooth.service
-	ln -fs ../../../../usr/lib/systemd/system/bluetooth.service \
+	ln -fs ../../../usr/lib/systemd/system/bluetooth.service \
 		$(TARGET_DIR)/etc/systemd/system/dbus-org.bluez.service
 endef