Adding the hdmi interface driver(hdmi.c) to the dss driver. It configures
the audio and video portion of HDMI based on functionality called by the
panel driver.
Signed-off-by: NMythri P K <mythripk@ti.com>
Signed-off-by: NYong Zhi <y-zhi@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>