ASoC: msm89xx-wcd: add support for audio on ferrum

Update tombak codec driver to support audio on
msmferrum. As conga codec newly added in ferrum
is similar to tombak, same codec driver of tombak
is used.

Change-Id: I564288217527918149d251b4200063f6360cffea
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
Signed-off-by: Aravind Kumar <akumark@codeaurora.org>