drm/amdgpu: add ta ras fw info (v2)

Add ras fw part, xgmi and ras fw are combined together in ta binary.
Reading the data from the info is not implemented yet.

v2: squash in "drm/amdgpu: fix NULL pointer when ta is missing"

Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>