There shouldn't be a reason to have LMB on for these configurations.
LMB was already disabled for ZynqMP by commit 0063487a5b60 ("configs:
zynqmp: Disable LMB for mini u-boot").

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/17d1e9b50b2fd032352911f94f4f213828e0a3f7.1662460892.git.michal.simek@amd.com