ARCH: arm: defconfig: Enable early buffer for diff sensors

This allows to buffer ASM330 and IAM20680 accel and
gyro samples from driver up to time till user space services
are up and running or upto nth second.

Change-Id: I648146060187982b4c271b3a29f9c3de47f4b8cb
Signed-off-by: Puneet Yatnal <puneet@codeaurora.org>