defconfig: msmcortex: enable apss cpr4 driver for msmtitanium

Enable apss cpr4 driver so that it can read cpr fused values and
cpr device node parameters and also enable CPR controller operation
to monitor and scale voltage of the vdd_apc rail.

Change-Id: Iabf9bbe580ea17cb8a8f14a5c790b7132b19548d
Signed-off-by: Tirupathi Reddy <tirupath@codeaurora.org>