kernel: move .quilt_used to quilt.mk

Move .quilt_used from kernel-defaults.mk to quilt.mk.

This is done to be consistent with the parallel Build/Patch/Default and
Host/Patch/Default and permit better Quilt handling on any package that
might use Kernel/Patch/Default.

Signed-off-by: Christian Marangi <[email protected]>

include/kernel-defaults.mk

@@ -25,7 +25,6 @@ ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
     define Kernel/Prepare/Default
 	$(LINUX_CAT) $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
 	$(Kernel/Patch)
-	$(if $(QUILT),touch $(LINUX_DIR)/.quilt_used)
     endef
   else
     define Kernel/Prepare/Default

include/quilt.mk

@@ -103,6 +103,7 @@ define Kernel/Patch/Default
 	$(call PatchDir,$(LINUX_DIR),$(GENERIC_PATCH_DIR),generic/)
 	$(call PatchDir,$(LINUX_DIR),$(GENERIC_HACK_DIR),generic-hack/)
 	$(call PatchDir,$(LINUX_DIR),$(PATCH_DIR),platform/)
+	$(if $(QUILT),touch $(LINUX_DIR)/.quilt_used)
 endef
 
 define Quilt/RefreshDir