fix initscripts activation (closes: #4037, #4745)

SVN-Revision: 15320

target/imagebuilder/files/Makefile

@@ -131,10 +131,10 @@ package_postinst: FORCE
 	@echo
 	@echo Activating init scripts
 	@( \
-		cd $(BUILD_DIR)/root; \
+		cd $(TARGET_DIR); \
 		for script in ./etc/init.d/*; do \
 			grep '#!/bin/sh /etc/rc.common' $$script >/dev/null || continue; \
-			IPKG_INSTROOT=$(BUILD_DIR)/root $(which bash) ./etc/rc.common $$script enable; \
+			IPKG_INSTROOT=$(TARGET_DIR) $(which bash) ./etc/rc.common $$script enable; \
 		done || true; \
 	)