motion: move initscript to src/initscripts/packages and use new macro

Signed-off-by: Jonatan Schlag <jonatan.schlag@ipfire.org>

lfs/motion

@@ -91,5 +91,8 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	#Remove obsolete V4L1 videodev.h
 	rm -f /usr/include/linux/videodev.h
 
+	#install initscripts
+	$(call INSTALL_INITSCRIPT,motion)
+
 	@rm -rf $(DIR_APP)
 	@$(POSTBUILD)