defconfig : enable quota feature for SDM660

The recent Android upgrade mandates disk quota feature to be enabled by
default on /data. Hence, enable the required kernel config options to
support the same.

Change-Id: Icaec3306b36b406bf24bf5e74f7c6cdb84f62d71
Signed-off-by: Ankit Jain <jankit@codeaurora.org>