mfd: pm8xxx-pwm: Add suppport for stand-alone PWM chip

Update SSBI register definitions based on PMIC type, and
handle cases where LPG module is not suppoted to drive
PWM.

Change-Id: Ife8312fcf6fc140f6c39c2b24827a5121d298c80
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
1 file changed