uboot-{kirkwood,xburst}: Fix typo in U-Boot image name, thanks framer99 (#8112)

SVN-Revision: 23567

package/uboot-kirkwood/Makefile

@@ -61,7 +61,7 @@ endef
 ifdef BUILD_VARIANT
 $(eval $(call uboot/$(BUILD_VARIANT)))
 UBOOT_CONFIG:=$(if $(CONFIG),$(CONFIG),$(BUILD_VARIANT))
-UBOOT_IMAGE:=$(if $(IMAGE),$(IMAGE),openwrt-$(BOARD)-$(BUILD_BARIANT)-u-boot.bin)
+UBOOT_IMAGE:=$(if $(IMAGE),$(IMAGE),openwrt-$(BOARD)-$(BUILD_VARIANT)-u-boot.bin)
 endif
 
 define Build/Prepare

package/uboot-xburst/Makefile

@@ -66,7 +66,7 @@ endef
 ifdef BUILD_VARIANT
 $(eval $(call uboot/$(BUILD_VARIANT)))
 UBOOT_CONFIG:=$(if $(CONFIG),$(CONFIG),$(BUILD_VARIANT))
-UBOOT_IMAGE:=$(if $(IMAGE),$(IMAGE),openwrt-$(BOARD)-$(BUILD_BARIANT)-u-boot.bin)
+UBOOT_IMAGE:=$(if $(IMAGE),$(IMAGE),openwrt-$(BOARD)-$(BUILD_VARIANT)-u-boot.bin)
 endif
 
 define Build/Prepare