Revert "Alarm: Don't use invalid timerfd alarm types"
We have too many BOARD_HAVE_ flags, and this can
be completely done dynamically by changing two lines of codes.
This reverts commit fa8fc291.
SAMBAR-1287
Change-Id: I5d23ce93fa9d2b5110803bf44168f1a56bfc2cdd
(cherry picked from commit 69f8fca4)