brcm80211: fmac: use correct firmware filename

Also don't use so generic BRCMF_USB_FW_NAME as we may need different
firmwares in the future.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmfmac/usb.c

@@ -65,7 +65,7 @@
 #define BRCMF_USB_CBCTL_READ	1
 #define BRCMF_USB_MAX_PKT_SIZE	1600
 
-#define BRCMF_USB_FW_NAME	"brcm/brcmfmac-usb.bin"
+#define BRCMF_USB_43236_FW_NAME	"brcm/brcmfmac43236b.bin"
 
 enum usbdev_suspend_state {
 	USBOS_SUSPEND_STATE_DEVICE_ACTIVE = 0, /* Device is busy, won't allow
@@ -1229,7 +1229,7 @@ static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo)
 	if (devinfo->image)
 		return 0;
 
-	fwname = BRCMF_USB_FW_NAME;
+	fwname = BRCMF_USB_43236_FW_NAME;
 
 	err = request_firmware(&fw, fwname, devinfo->dev);
 	if (!fw) {
@@ -1596,7 +1596,7 @@ static struct usb_device_id brcmf_usb_devid_table[] = {
 	{ }
 };
 MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
-MODULE_FIRMWARE(BRCMF_USB_FW_NAME);
+MODULE_FIRMWARE(BRCMF_USB_43236_FW_NAME);
 
 /* TODO: suspend and resume entries */
 static struct usb_driver brcmf_usbdrvr = {