staging: gdm724x: Add blank line after declaration

Fix WARNING: Missing a blank line after declarations
Issue found by checkpatch.pl
Signed-off-by: Soumya Negi <soumya.negi97@gmail.com>
Acked-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://lore.kernel.org/r/20231018044609.22616-1-soumya.negi97@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/gdm724x/gdm_tty.c

@@ -160,6 +160,7 @@ static ssize_t gdm_tty_write(struct tty_struct *tty, const u8 *buf, size_t len)
 
 	while (remain) {
 		size_t sending_len = min_t(size_t, MUX_TX_MAX_SIZE, remain);
+
 		gdm->tty_dev->send_func(gdm->tty_dev->priv_dev,
 					(void *)(buf + sent_len),
 					sending_len,