leds-qpnp: Blink interpolation, qpnp-pwm driver fix

Change-Id: Ic917efb69e746f2924e9a9715e1c57e77b5beb4e
Merge pull request #11 from CyanogenMod/cm-11.0

leds-qpnp: Blink interpolation, qpnp-pwm driver fix