ASoC: wcd9xxx: add device_reset functions for taiko and tapan

When slimbus is reset reset_device callback is called. In this event codec
driver should reset the codec so that codec can be enumulated again.

Change-Id: I14a2921b71dbe862cc52f7af1166c30fa4346a5a
Signed-off-by: Fred Oh <fred@codeaurora.org>