Revert: "Revert: "msm8226: Don't set custom vmalloc""

This reverts commit 6cfc11f81412c28e6b4e242ed1547a9ad1b6094b.

Change-Id: If051b287997576ed3654cc03900192e72c23f187
Merge branch 'cm-12.0' of https://github.com/somcom3x/android_device_motorola_msm8226-common into cm-12.0