arm/dt: pm8226: Add PM8226 PWM device tree information

Add required device tree bindings for LPG/PWM devices found in
PM8226 pmic chip.

Change-Id: I850386dbe51fe72751262164376f5a0171353d6c
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
1 file changed