pwm: qpnp: Enable glitch removal selectively

Currently, glitch removal is enabled by default when the PWM
channel is configured. However, that adds delay to the PWM
output which is undesirable for longer PWM period. Disable the
glitch removal when PWM is configured and enable it after the
PWM is enabled.

CRs-Fixed: 1009283
Change-Id: Ibf4abb99e5e3e7aa9a9212b57094876f6ec6e9f0
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>