hwui: This code should only be enabled with QCOM_BSP

This brings back Change-Id: I1a06ac54a8ce2dccbf4a67424b0cbb6e7dd21e8b

Change-Id: I253884b15f52f403efcc46e66bc93cf85e91c82d
Merge "hwui: This code should only be enabled with QCOM_BSP" into jb-mr1