media: ispstat: use %p to print the address of a buffer

Instead of converting to int, use %p. That prevents this
warning:
	drivers/media/platform/omap3isp/ispstat.c:451 isp_stat_bufs_alloc() warn: argument 7 to %08lx specifier is cast from pointer
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/omap3isp/ispstat.c

@@ -449,10 +449,8 @@ static int isp_stat_bufs_alloc(struct ispstat *stat, u32 size)
 		buf->empty = 1;
 
 		dev_dbg(stat->isp->dev,
-			"%s: buffer[%u] allocated. dma=0x%08lx virt=0x%08lx",
-			stat->subdev.name, i,
-			(unsigned long)buf->dma_addr,
-			(unsigned long)buf->virt_addr);
+			"%s: buffer[%u] allocated. dma=%pad virt=%p",
+			stat->subdev.name, i, &buf->dma_addr, buf->virt_addr);
 	}
 
 	return 0;