defconfig : enable quota feature for MSM8909W

The recent Android O 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: I4dea5af644f26718889e7b15fe90aaa2396861fa
Signed-off-by: Sundara Vinayagam <sundvi@codeaurora.org>