drm/xe/display: Don't try to use vram if not available

Trying to get bo from vram when vram not available will cause
WARN_ON() hence avoid touching vram if not available.
Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/display/xe_fb_pin.c

@@ -62,11 +62,12 @@ static int __xe_pin_fb_vma_dpt(struct intel_framebuffer *fb,
 		dpt_size = ALIGN(intel_rotation_info_size(&view->rotated) * 8,
 				 XE_PAGE_SIZE);
 
-	dpt = xe_bo_create_pin_map(xe, tile0, NULL, dpt_size,
-				  ttm_bo_type_kernel,
-				  XE_BO_CREATE_VRAM0_BIT |
-				  XE_BO_CREATE_GGTT_BIT);
-	if (IS_ERR(dpt))
+	if (IS_DGFX(xe))
+		dpt = xe_bo_create_pin_map(xe, tile0, NULL, dpt_size,
+					   ttm_bo_type_kernel,
+					   XE_BO_CREATE_VRAM0_BIT |
+					   XE_BO_CREATE_GGTT_BIT);
+	else
 		dpt = xe_bo_create_pin_map(xe, tile0, NULL, dpt_size,
 					   ttm_bo_type_kernel,
 					   XE_BO_CREATE_STOLEN_BIT |