src/mainboard to src/security: 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: Ie34003a9fdfe9f3b1b8ec0789aeca8b9435c9c79
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58081
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/mainboard/emulation/qemu-armv7/memlayout.ld b/src/mainboard/emulation/qemu-armv7/memlayout.ld
index 5f32d8b..387a667 100644
--- a/src/mainboard/emulation/qemu-armv7/memlayout.ld
+++ b/src/mainboard/emulation/qemu-armv7/memlayout.ld
@@ -18,7 +18,7 @@
  * with -bios option which neatly puts coreboot into flash and so payloads
  * can find CBFS and we don't risk overwriting CBFS.
  *
- * Prior to Jul 2014 qemu aliased 0 to begining of RAM instead of flash
+ * Prior to Jul 2014 qemu aliased 0 to beginning of RAM instead of flash
  * and -bios was unusable as $pc pointed to 0 which was zero-filled as a
  * workaround we suggested using -kernel but this still had all the issues
  * of having fake-ROM in RAM. In fact it was even worse as fake ROM ends