src/mainboard: Remove whitespace after sizeof

Change-Id: Ie2a047d35e69182812c349daedc5b3b5fde20122
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16860
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>

src/mainboard/intel/wtm2/i915.c

@@ -81,7 +81,7 @@ static int ioread = 0, iowrite = 0;
 static char *regname(unsigned long addr)
 {
 	static char name[16];
-	snprintf(name, sizeof (name), "0x%lx", addr);
+	snprintf(name, sizeof(name), "0x%lx", addr);
 	return name;
 }