drm/amdgpu: disabled fru eeprom access

added asic support checking function to be filled in by supported asic types

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>