Internal board zc1275 was released also to public which ends up with adding
missing 'u' to board name. Reflect this change by renaming DT files.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/9b50c72c4e634b2c72758eed6275920eedbda06f.1683099606.git.michal.simek@amd.com