V4L/DVB (6894): xc5000: fix build warning

Fix the following build warning:

xc5000.c:560: warning: format '%d' expects type 'int',
	      but argument 2 has type 'size_t'

On many architectrues size_t is unsigned long, and may not be printed with %d.
Use %Zu instead.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/frontends/xc5000.c

@@ -533,7 +533,8 @@ static int xc5000_fwupload(struct dvb_frontend* fe)
 		printk(KERN_ERR "xc5000: Upload failed. (file not found?)\n");
 		ret = XC_RESULT_RESET_FAILURE;
 	} else {
-		printk(KERN_INFO "xc5000: firmware read %d bytes.\n", fw->size);
+		printk(KERN_INFO "xc5000: firmware read %Zu bytes.\n",
+		       fw->size);
 		ret = XC_RESULT_SUCCESS;
 	}