fix a typo in the comment above the SNI entries, SNC -> SNI.
fix a typo in the comment above the SNI entries, SNC -> SNI.

From Igor Sobrado <igor at string1 dot ciencias dot uniovi dot es>

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars