drm/xe: Fix overflow in vram manager

The overflow caused xe_bo_restore_kernel to return an error
Fix overflow in vram manager alloc function.
Signed-off-by: Riana Tauro <riana.tauro@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_ttm_vram_mgr.c

@@ -118,7 +118,7 @@ static int xe_ttm_vram_mgr_new(struct ttm_resource_manager *man,
 
 		cur_size = size;
 
-		if (fpfn + size != place->lpfn << PAGE_SHIFT) {
+		if (fpfn + size != (u64)place->lpfn << PAGE_SHIFT) {
 			/*
 			 * Except for actual range allocation, modify the size and
 			 * min_block_size conforming to continuous flag enablement