input: pm8058_vibrator: Add ff-memless based PM8058 vibrator driver

Add support for the input force-feedback memless framework
based driver for PM8058 vibrator block.

Change-Id: Ifad2bccdbfc7ea9f45281e8c5f9ef8612a758379
Acked-by: Amy Maloche <amaloche@qualcomm.com>
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>