mainboard/lenovo/x220: Clean up code

thermal.h still has references to X230 in include guard since it
seems to have been copied from that port. Code formatting changes
in romstage.c.

Change-Id: Id8bd931bed127036e8bb4ab604d9d6145f767e56
signed-off-by: Jan Tatje <jan@jnt.io>
Reviewed-on: https://review.coreboot.org/15071
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/src/mainboard/lenovo/x220/romstage.c b/src/mainboard/lenovo/x220/romstage.c
index 27998d9..71ed1a8 100644
--- a/src/mainboard/lenovo/x220/romstage.c
+++ b/src/mainboard/lenovo/x220/romstage.c
@@ -75,12 +75,14 @@
 	{ 1, 1, 6 },
 };
 
-void mainboard_get_spd(spd_raw_data *spd) {
+void mainboard_get_spd(spd_raw_data *spd)
+{
 	read_spd (&spd[0], 0x50);
 	read_spd (&spd[2], 0x51);
 }
 
-void mainboard_early_init(int s3resume) {
+void mainboard_early_init(int s3resume)
+{
 }
 
 void mainboard_config_superio(void)