asterisk/lock.h: Fix syntax errors for non-gcc OSX with 64-bit integers.

Add a couple of missing closing brackets / parenthesis.

ASTERISK-24814 #close
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/4436/
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Merged revisions 432054 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 432055 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@432056 65c4cc65-6c06-0410-ace0-fbb531ad65f3