defconfig: Add seperate one for caf bulids

Change-Id: I567922812cb41f80ae96eeb0aa57de68279d5a20
drivers: platform: msm: qpnp-vibrator: Add sysfs interface for intensity

To control the Haptic intensity using sysfs interface.

Signed-off-by: SpaceKiller <alexisalbo.1@gmail.com>