defconfig: msmtitanium: enable apss cpr4 driver

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: Ifd04700b6d4459af589ba9ca03b38cc1be64da51
Signed-off-by: Tirupathi Reddy <tirupath@codeaurora.org>