Add qcom,force-low-pwm-size property that would indicate the
forced use of legacy low PWM sizes (6 or 9 bits) instead of
full 8-15 bit PWM sizes.
Change-Id: Ic0e2b972bc16871891d81ec20ec0b48d326f6666
Signed-off-by: Shilpa Suresh <quic_c_sbsure@quicinc.com>