[openwrt/openwrt] uboot-mxs: build with mxs generic subtarget

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/1c35dc26f12fae6aa7e2f3e7cf5481508a0e6c61

commit 1c35dc26f12fae6aa7e2f3e7cf5481508a0e6c61
Author: Kuan-Yi Li <kyli at abysm.org>
AuthorDate: Sun Dec 25 04:06:03 2022 +0800

    uboot-mxs: build with mxs generic subtarget
    
    Fix image build fail by using the generic subtarget.
    
    Fixes: 64ef920b ("mxs: add generic subtarget")
    Ref: 40e3f660 ("uboot-fritz4040: build with ipq40xx generic subtarget")
    Signed-off-by: Kuan-Yi Li <kyli at abysm.org>
    [ add commit description ]
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
---
 package/boot/uboot-mxs/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/boot/uboot-mxs/Makefile b/package/boot/uboot-mxs/Makefile
index 3c908874fa..ae1c027a0a 100644
--- a/package/boot/uboot-mxs/Makefile
+++ b/package/boot/uboot-mxs/Makefile
@@ -19,6 +19,7 @@ include $(INCLUDE_DIR)/host-build.mk
 
 define U-Boot/Default
   BUILD_TARGET:=mxs
+  BUILD_SUBTARGET:=generic
   UBOOT_IMAGE:=u-boot.sb
   DEFAULT:=y
   HIDDEN:=1