drm/amdgpu/psp: initialization PSP SPL fw

Support for psp firmware header version v1_3 initialization and
information print.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>