As the user cannot do anything about the unsupported Trusted Memory Zone
(TMZ) feature, do not warn about it, but make it informational, so
demote the log level from warning to info.
Signed-off-by: NPaul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>