drm/amdgpu: allow use psp to load firmware (v2)

Match existing asics.

v2: rebase (Alex)

Signed-off-by: Hawking Zhang <[e-mail]>
Reviewed-by: Kevin Wang <[e-mail]>
Reviewed-by: Le Ma <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

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

···
 	case CHIP_NAVY_FLOUNDER:
 	case CHIP_VANGOGH:
 	case CHIP_DIMGREY_CAVEFISH:
+	case CHIP_ALDEBARAN:
 		if (!load_type)
 			return AMDGPU_FW_LOAD_DIRECT;
 		else
 			return AMDGPU_FW_LOAD_PSP;
-	case CHIP_ALDEBARAN:
-		return AMDGPU_FW_LOAD_DIRECT;
 	default:
 		DRM_ERROR("Unknown firmware load type\n");
 	}