[media] videobuf-dma-sg: Use min_t(size_t, PAGE_SIZE ..)

As pointed by Laurent:

I think min_t(size_t, PAGE_SIZE, size) is the preferred way.

Thanks-to: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/videobuf-dma-sg.c b/drivers/media/video/videobuf-dma-sg.c
index 7153e44..20f227e 100644
--- a/drivers/media/video/videobuf-dma-sg.c
+++ b/drivers/media/video/videobuf-dma-sg.c
@@ -116,8 +116,8 @@
 			goto nopage;
 		if (PageHighMem(pages[i]))
 			goto highmem;
-		sg_set_page(&sglist[i], pages[i], min((unsigned)PAGE_SIZE, size), 0);
-		size -= min((unsigned)PAGE_SIZE, size);
+		sg_set_page(&sglist[i], pages[i], min_t(size_t, PAGE_SIZE, size), 0);
+		size -= min_t(size_t, PAGE_SIZE, size);
 	}
 	return sglist;