ASoC: wcd: fix removal detection of headphone

For headphone removal to be detected correctly,
either micbias or current source needs to be
enabled. Enable current source if headphone is
directly connected to the jack otherwise enable
micbias if headphone is connected to the extension
cable.

Change-Id: I5e6b658622b61e3f294b382cb10f8d158f49c9b3
Signed-off-by: Simmi Pateriya <simmip@codeaurora.org>
Signed-off-by: Yeleswarapu Nagaradhesh <nagaradh@codeaurora.org>