firmware: dvb/dvb-usb: prepare for FIRMWARE_NAME_MAX removal

We're going to remove the FIRMWARE_NAME_MAX definition in order to avoid any
firmware name length restriction.
This patch changes the dvb_usb_device_properties firmware field accordingly.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Reviewed-by: Michael Krufky <mkrufky@kernellabs.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/media/dvb/dvb-usb/dvb-usb.h

@@ -196,7 +196,7 @@ struct dvb_usb_device_properties {
 #define CYPRESS_FX2     3
 	int        usb_ctrl;
 	int        (*download_firmware) (struct usb_device *, const struct firmware *);
-	const char firmware[FIRMWARE_NAME_MAX];
+	const char *firmware;
 	int        no_reconnect;
 
 	int size_of_priv;