include/image.mk: allow image code to override uImage name

Signed-off-by: John Crispin <john@phrozen.org>

include/image-commands.mk

@@ -7,7 +7,7 @@ define Build/uImage
 	mkimage -A $(LINUX_KARCH) \
 		-O linux -T kernel \
 		-C $(1) -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
-		-n '$(call toupper,$(LINUX_KARCH)) LEDE Linux-$(LINUX_VERSION)' -d $@ $@.new
+		-n '$(if $(UIMAGE_NAME),$(UIMAGE_NAME),$(call toupper,$(LINUX_KARCH)) LEDE Linux-$(LINUX_VERSION))' -d $@ $@.new
 	@mv $@.new $@
 endef
 

include/image.mk

@@ -355,6 +355,7 @@ define Device/Init
   DEVICE_DTS_DIR :=
 
   BOARD_NAME :=
+  UIMAGE_NAME :=
 
   FILESYSTEMS := $(TARGET_FILESYSTEMS)
 endef
@@ -364,7 +365,7 @@ DEFAULT_DEVICE_VARS := \
   DEVICE_DTS DEVICE_DTS_DIR BOARD_NAME CMDLINE \
   UBOOTENV_IN_UBI KERNEL_IN_UBI \
   BLOCKSIZE PAGESIZE SUBPAGESIZE VID_HDR_OFFSET \
-  UBINIZE_OPTS
+  UBINIZE_OPTS UIMAGE_NAME
 
 define Device/ExportVar
   $(1) : $(2):=$$($(2))