media: gp8psk: don't abuse of GFP_DMA

There's s no reason why it should be using GFP_DMA there.
This is an USB driver. Any restriction should be, instead,
at HCI core, if any.

Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: linux-mm@kvack.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/usb/dvb-usb/gp8psk.c

@@ -148,7 +148,7 @@ static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d)
 	info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware);
 
 	ptr = fw->data;
-	buf = kmalloc(64, GFP_KERNEL | GFP_DMA);
+	buf = kmalloc(64, GFP_KERNEL);
 	if (!buf) {
 		ret = -ENOMEM;
 		goto out_rel_fw;