arm64: zynqmp: Generate desc when SPL_FS_LOAD_PAYLOAD_NAME is valid

Generate description only when CONFIG_SPL_FS_LOAD_PAYLOAD_NAME is not
empty. When name is empty there is no reason to generate description for
it because it is not aligned with dfu rules.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/4cec866f5fffa742258c65796371d7bfc6068915.1711109356.git.michal.simek@amd.com
1 file changed