ipq40xx: enable 6.12 testing kernel
The 6.12 testing kernel for ipq40xx target is ready now.
Tested on SKSpruce WIA3300-20.
Signed-off-by: Shiji Yang <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/18725
Signed-off-by: Hauke Mehrtens <[email protected]>