brcm47xx: prefix netgear specific device variables with NETGEAR_

Rename BOARD_ID to NETGEAR_BOARD_ID and REGION to NETGEAR_REGION.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 46594

target/linux/brcm47xx/image/Makefile

@@ -130,8 +130,8 @@ define Build/netgear-chk
 	$(STAGING_DIR_HOST)/bin/mkchkimg \
 		-o $@.new \
 		-k $@ \
-		-b $(BOARD_ID) \
-		-r $(REGION)
+		-b $(NETGEAR_BOARD_ID) \
+		-r $(NETGEAR_REGION)
 	mv $@.new $@
 endef
 
@@ -141,7 +141,7 @@ endef
 
 DEVICE_VARS += PRODUCTID
 DEVICE_VARS += DEVICE_ID VERSION
-DEVICE_VARS += BOARD_ID REGION
+DEVICE_VARS += NETGEAR_BOARD_ID NETGEAR_REGION
 
 define Device/Default
 	KERNEL := kernel-bin
@@ -187,8 +187,8 @@ endef
 define NetgearDevice
   define Device/netgear-$(1)
 	$$(Device/netgear)
-	BOARD_ID := $(2)
-	REGION := $(3)
+	NETGEAR_BOARD_ID := $(2)
+	NETGEAR_REGION := $(3)
   endef
   TARGET_DEVICES += netgear-$(1)
 endef