Add amdgpu_emu_mode module parameter to control the emulation mode
Avoid vbios operation on emulation since there is no vbios post duirng emulation,
use the common hw_init to simulate the post
Signed-off-by: NShaoyun Liu <Shaoyun.Liu@amd.com>
Acked-By: NAlex Deucher <alexander.deucher@amd.com>
Acked-By: NChristian Konig <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>