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

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/?p=source.git;a=commitdiff;h=4df20117943dcc5dab6705e8dad7a6cfbc30dfb0

commit 4df20117943dcc5dab6705e8dad7a6cfbc30dfb0
Author: John Crispin <john at phrozen.org>
AuthorDate: Wed Aug 3 02:30:12 2016 +0200

    include/image.mk: allow image code to override uImage name
    
    Signed-off-by: John Crispin <john at phrozen.org>
---
 include/image-commands.mk | 2 +-
 include/image.mk          | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/image-commands.mk b/include/image-commands.mk
index 160b5d8..00cb341 100644
--- a/include/image-commands.mk
+++ b/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
 
diff --git a/include/image.mk b/include/image.mk
index 91862c4..f0b25aa 100644
--- a/include/image.mk
+++ b/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))