src/soc to src/superio: Fix spelling errors

These issues were found and fixed by codespell, a useful tool for
finding spelling errors.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: Ieafbc93e49fcef198ac6e31fc8a3b708c395e08e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58082
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/southbridge/intel/lynxpoint/pch.h b/src/southbridge/intel/lynxpoint/pch.h
index 598c2dc..7d9fc6d 100644
--- a/src/southbridge/intel/lynxpoint/pch.h
+++ b/src/southbridge/intel/lynxpoint/pch.h
@@ -647,7 +647,7 @@
 #define SPIBAR16(x) RCBA16((x) + SPIBAR_OFFSET)
 #define SPIBAR32(x) RCBA32((x) + SPIBAR_OFFSET)
 
-/* Reigsters within the SPIBAR */
+/* Registers within the SPIBAR */
 #define SSFC 0x91
 #define FDOC 0xb0
 #define FDOD 0xb4