commit d6b785d477 ("ath79: add kernel 5.10 support") moved KERNEL_TESTING_PATCHVER to a subtarget level, but is looks like Mikrotik subtarget was forgotten. Also add it for Mikrotik. Signed-off-by: Koen Vandeputte <koen.vandeputte@citymesh.com>
d6b785d477