defconfig: MSM8953: Enable kernel AIO support

New Android versions are using kernel AIO functionality for adb &
MTP interfaces for better performance. Hence enable CONFIG_AIO
to support same.

Change-Id: I1a9dcbf0402aa6066744e9550d23c85bc9207709
Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>
Signed-off-by: Pradosh Das <prados@codeaurora.org>