drm/i915/gt: Remove unneeded semicolon

The semicolon after the `}' is unneeded.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[Removed line mention when pushing]
Link: https://patchwork.freedesktop.org/patch/msgid/20220716184439.72056-1-wangborong@cdjrlc.com

drivers/gpu/drm/i915/gt/intel_migrate.c

@@ -645,7 +645,7 @@ static int scatter_list_length(struct scatterlist *sg)
 	while (sg && sg_dma_len(sg)) {
 		len += sg_dma_len(sg);
 		sg = sg_next(sg);
-	};
+	}
 
 	return len;
 }