Flush instruction cache for arm in haystack code

This is a merge of the widevine CL:
https://widevine-internal-review.googlesource.com/11254

On arm64, some devices are having random issues that probaby relate to
a stale instruction cache.  This code change flushes the cache for
pages that are going to be made executable.

b/17400000

Current Library Version:
  arm64:  Level3 Library Sep 25 2014 17:10:03

Change-Id: I3904e96e922654c055a478079aa52c29cbde8b9f
This commit is contained in:
Fred Gylys-Colwell
2014-09-25 17:26:06 -07:00
parent 16abc110bb
commit 95658e73b2