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/sandybridge/registers/mchbar.h b/src/northbridge/intel/sandybridge/registers/mchbar.h
index 2fe6b24..d3df3c0 100644
--- a/src/northbridge/intel/sandybridge/registers/mchbar.h
+++ b/src/northbridge/intel/sandybridge/registers/mchbar.h
@@ -483,7 +483,7 @@
 #define ECC_INJ_ADDR_COMPARE	0x5090 /* Address compare for ECC error inject */
 #define ECC_INJ_ADDR_MASK	0x5094 /* Address mask for ECC error inject */
 
-#define MC_LOCK			0x50fc /* Memory Controlller Lock register */
+#define MC_LOCK			0x50fc /* Memory Controller Lock register */
 
 #define GFXVTBAR		0x5400 /* Base address for IGD */
 #define VTVC0BAR		0x5410 /* Base address for PEG, USB, SATA, etc. */