ASoC: wcd934x: Add delay during headphone path bringup and teardown

When compander is disabled, headphone power amplifiers
need more delay to ramp up and ramp down. Add a delay
to avoid pop noise during headphone path bringup and teardown.

Change-Id: I74d834d5096535c124083f3e24ccb493a86cbbd5
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>