src/security/vboot: Fix typo

Change-Id: Ie98ee00a83d837b6d6491fed3a474048dc23e104
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/27910
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/security/vboot/bootmode.c b/src/security/vboot/bootmode.c
index 70d3118..ba7edff5 100644
--- a/src/security/vboot/bootmode.c
+++ b/src/security/vboot/bootmode.c
@@ -63,7 +63,7 @@
  * make sure that the stored recovery reason is cleared off before that
  * happens.
  * IMPORTANT: Any reboot occurring after BS_DEV_INIT state will cause loss of
- * recovery reason on reboot. Until now, we have seen reboots occuring on x86
+ * recovery reason on reboot. Until now, we have seen reboots occurring on x86
  * only in FSP stages which run before BS_DEV_INIT.
  */
 BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT,
@@ -99,7 +99,7 @@
  * from it.
  * 3. Checks recovery request in handoff for stages post-cbmem.
  * 4. For non-CBMEM stages, check if vboot verification is done and look-up
- * selected region to identify if vboot_refence library has requested recovery
+ * selected region to identify if vboot_reference library has requested recovery
  * path. If yes, return the reason code from shared data.
  * 5. If nothing applies, return 0 indicating no recovery request.
  */