[openwrt/openwrt] apm821xx: enable kernel 6.12

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/b0df4795b172c9a0e1afc86e28f63ddfc3a821ea

commit b0df4795b172c9a0e1afc86e28f63ddfc3a821ea
Author: Rosen Penev <rosenp at gmail.com>
AuthorDate: Mon May 12 17:36:05 2025 -0700

    apm821xx: enable kernel 6.12
    
    It builds now.
    
    Tested on Cisco Meraki MX60W.
    
    Signed-off-by: Rosen Penev <rosenp at gmail.com>
    Link: https://github.com/openwrt/openwrt/pull/18798
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 target/linux/apm821xx/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/apm821xx/Makefile b/target/linux/apm821xx/Makefile
index 1bbcbf5070..ac28b00211 100644
--- a/target/linux/apm821xx/Makefile
+++ b/target/linux/apm821xx/Makefile
@@ -10,6 +10,7 @@ FEATURES:=fpu dt gpio ramdisk squashfs usb
 SUBTARGETS:=nand sata
 
 KERNEL_PATCHVER:=6.6
+KERNEL_TESTING_PATCHVER:=6.12
 
 define Target/Description
 	Build images for AppliedMicro APM821xx based boards.