ARM: dts: msm: Enable context aware and quirks for A512 on msmfalcon

Enable context aware dcvs for A512 GPU to handle the commands
from multiple contexts properly. Also enable quirks applicable
for A512.

Change-Id: If51734ae27add47a856ca378faf11e54b81e4dcf
Signed-off-by: Rajesh Kemisetti <rajeshk@codeaurora.org>