input: misc: Add initial driver to support QTI HV haptics

QTI HV (High Voltage) haptics is a module which can play haptics
effects for LRA or ERM with drive voltage up to 10 V. It has
several pattern sources built inside and each pattern source can
be used for playing different vibration effects.

Add the driver to support QTI HV haptics module, which will be
registered as an input FF device and can be controlled by calling
read/write/ ioctl APIs on the input device node.

Change-Id: I8323bdf3f7a631570604577719d5b7876fc65ef1
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>