wifi: brcmfmac: add linefeed at end of file

The following sparse warning was reported:

drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c:432:49:
  warning: no newline at end of file

Fixes: 31343230 ("wifi: brcmfmac: export firmware interface functions")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/all/20240125165128.7e43a1f3@kernel.org/Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240128093057.164791-2-arend.vanspriel@broadcom.com

drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c

@@ -429,4 +429,4 @@ s32 brcmf_fil_xtlv_data_get(struct brcmf_if *ifp, const char *name, u16 id,
 	mutex_unlock(&drvr->proto_block);
 	return err;
 }
-BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_xtlv_data_get);
\ No newline at end of file
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_xtlv_data_get);