drm/amdgpu: Add gpu_info firmware for vega20. (v2)

vega20_gpu_info firmware stores gpu configuration for vega20.

v2: drop gpu info firmware for vega20

Squash of:
drm/amdgpu: Add gpu_info firmware for vega20.
drm/amdgpu: drop gpu_info firmware for vega20
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -1388,6 +1388,7 @@ static int amdgpu_device_parse_gpu_info_fw(struct amdgpu_device *adev)
 	case CHIP_KABINI:
 	case CHIP_MULLINS:
 #endif
+	case CHIP_VEGA20:
 	default:
 		return 0;
 	case CHIP_VEGA10: