jemalloc: don't query /proc for the overcommit setting

* @arter97 found the issue that
  querying /proc to get the OS's
  overcommit policy at init time,
  creates an overhead.
-> Hardcode the overcommit policy
   for Android, since Android always
   does overcommit, in order to avoid
   retrieving this information via
   /proc.

Change-Id: Ibb1acad2d939ccbbadb5566c00186137980838e6
Signed-off-by: Alex Naidis <alex.naidis@linux.com>
1 file changed