soc/intel/skylake/chip.h: Remove repeated word

Change-Id: Id5bf9255e9a16a4f311e3b15eb77ad6e4bb13f66
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49518
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jacob Garber <jgarber1@ualberta.ca>

src/soc/intel/skylake/chip.h

@@ -307,7 +307,7 @@ struct soc_intel_skylake_config {
 	u8 LockDownConfigGlobalSmi;
 	/*
 	 * Enable RTC lower and upper 128 byte Lock bits to lock Bytes 38h-3Fh
-	 * in the upper and and lower 128-byte bank of RTC RAM.
+	 * in the upper and lower 128-byte bank of RTC RAM.
 	 */
 	u8 LockDownConfigRtcLock;