[PATCH] ramips: move KERNEL_LOADADDR into Device/Default

[Sungbo Eo]

Commit f4a79148f8cb ("ramips: add support for ipTIME AX2004M") was
reverted due to KERNEL_LOADADDR leakage, and it seems the problem can be
mitigated by moving the variable definition into Device/Default. By this,
KERNEL_LOADADDR redefined in a device recipe will not be leaked into the
subsequent device recipes anymore and thus will remain as a per-device
variable.

Ref: cd6a6e3030ff ("Revert "ramips: add support for ipTIME AX2004M"")
Signed-off-by: Sungbo Eo <mans0n at gorani.run>
---
I have not tested this on actual devices (yet), but I've successfully reproduced
(bit-for-bit identical) device images in all mt7621 and mt7620 subtargets
with this patch and the offending device recipe in f4a79148f8cb applied.
(...except for humax,e10 factory image, which I try to solve in [1])

[1] https://github.com/openwrt/openwrt/pull/5026
---
 target/linux/ramips/image/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/linux/ramips/image/Makefile b/target/linux/ramips/image/Makefile
index 241b620941..f481e6e447 100644
--- a/target/linux/ramips/image/Makefile
+++ b/target/linux/ramips/image/Makefile
@@ -22,7 +22,6 @@ ldrplatform-$(CONFIG_TARGET_ramips_mt7621) := mt7621
 ldrflashstart-y := 0x1c000000
 ldrflashstart-$(CONFIG_TARGET_ramips_mt7621) := 0x1fc00000
 
-KERNEL_LOADADDR := $(loadaddr-y)
 LOADER_PLATFORM := $(ldrplatform-y)
 LOADER_FLASH_START := $(ldrflashstart-y)
 
@@ -176,6 +175,7 @@ endef
 define Device/Default
   PROFILES = Default
   KERNEL := $(KERNEL_DTB) | uImage lzma
+  KERNEL_LOADADDR := $(loadaddr-y)
   SOC := $(DEFAULT_SOC)
   DEVICE_DTS_DIR := ../dts
   DEVICE_DTS = $$(SOC)_$(1)
-- 
2.25.1