Move C labels to start-of-line

Also mark the corresponding lint test stable.

Change-Id: Ib7c9ed88c5254bf56e68c01cdbd5ab91cd7bfc2f
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/772
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/southbridge/amd/cs5536/early_smbus.c

@@ -194,7 +194,7 @@ static unsigned char do_smbus_read_byte(unsigned smbus_io_base,
 
 	return smbus_get_result(smbus_io_base);
 
-      err:
+err:
 	print_debug("SMBUS READ ERROR:");
 	print_debug_hex8(error);
 	print_debug(" device:");