Add fmt_change_test app to capture SPDIF or HDMI audio according
to detected format.
Listen to format change events and open new file on each change.
Change-Id: Iaace7f4c8c0a94418f326ae8d403cd14741d484f
- Test app to wait for events of Hdmi-in connection state, audio present state,
sample rate changes.
- Added code to send edid data by using sysfs exposed by kernel.
Change-Id: Ia68df476397e8aed2aba299337377fe948ff9434