make probe_serial_gsc() static

This patch makes the needlessly global probe_serial_gsc() static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/serial/8250_gsc.c

@@ -111,7 +111,7 @@ static struct parisc_driver serial_driver = {
 	.probe		= serial_init_chip,
 };
 
-int __init probe_serial_gsc(void)
+static int __init probe_serial_gsc(void)
 {
 	register_parisc_driver(&lasi_driver);
 	register_parisc_driver(&serial_driver);