ASoC: wcd9335: Enable headphone OCP for wcd9335 v2.0

WCD9335 codec version 2.0 has support for detecting
over current in headphones path and shuts the headphone
PAs whenever over current is detected. Add support to
enable OCP (over current protection) for headphone path.

Change-Id: Iabad301bb8a926bfdef437754b13ba583dd315d7
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>