DHCPDC: Actually we do have a monotonic clock...

Fix bug http://b/issue?id=6272879

DHCPCD thought that our kernel did not support the posix clock_gettime
and CLOCK_MONOTONIC which could cause an interface flap under just the
right circumstances.  See the writeup in the bug for details.

Change-Id: I3a5325625499d4c3640ce498fc100ab2891d0a9c
1 file changed