Allow some rounding on SO_TIMEOUT values

Kernels can round the value in use depending on the HZ setting.
This change allows up to 10ms of slop between the SO_TIMEOUT
value set and the one returned.

Bug: 26583607
Change-Id: I527987de20a6e10172656e1f0beeaf63419ffd77
(cherry picked from commit 6566167989735858978d062a4385104ce5eca7e3)
6 files changed