.mailmap: update Konstantin Khlebnikov's email address

.mailmap: update Konstantin Khlebnikov's email address

get_maintainer.pl returns [email protected] via git history, for
which emails get rejected:

   RCPT TO:<[email protected]>
   550 5.1.1 Recipient address rejected: User unknown

Use his other address that passes vger's mxverify:

   RCPT TO:<[email protected]>
   250 2.1.5 OK ir10si13843754pbc.62 - gsmtp

and add his old email address in the wrong email address field.

Signed-off-by: Kim Phillips <[email protected]>
Acked-by: Konstantin Khlebnikov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>