display: Switch to QTI allocator and mapper interface.

This reverts commit I3192c912ca790174f6fc6acb37988d6720167b07.
Revert "gralloc: Use default interfaces of allocator/mapper"

CRs-Fixed: 2394922
Change-Id: Ie376edf0ca5545ad327a9d1bacd7b4ffc09e8490
6 files changed