nb/intel/{haswell,sandybridge}/*/mchbar.h: Fix typo in comment

Change-Id: Ie41433ed8fcadec25007c436ec12163d729a2afe
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50440
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/northbridge/intel/haswell/registers/mchbar.h b/src/northbridge/intel/haswell/registers/mchbar.h
index a61036a..2dfad62 100644
--- a/src/northbridge/intel/haswell/registers/mchbar.h
+++ b/src/northbridge/intel/haswell/registers/mchbar.h
@@ -13,7 +13,7 @@
 #define MC_INIT_STATE_G		0x5030
 #define MRC_REVISION		0x5034 /* MRC Revision */
 
-#define MC_LOCK			0x50fc /* Memory Controlller Lock register */
+#define MC_LOCK			0x50fc /* Memory Controller Lock register */
 
 #define GFXVTBAR		0x5400 /* Base address for IGD */
 #define EDRAMBAR		0x5408 /* Base address for eDRAM */