defconfig: msm8994: Enable the common log support

Enable the common log file to register dump
structures for dumping PMIC and misc registers
which can be parsed in case of a device crash.

Change-Id: I8738af898d483e872c10beb8e71c378c00e01fdd
Signed-off-by: Neeti Desai <neetid@codeaurora.org>