mailmap: update email address for Colin King

Colin King has moved to Intel to update gmail and Canonical email
addresses.

Link: https://lkml.kernel.org/r/20211102231617.78569-1-colin.i.king@gmail.com


Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>