msm_fb: HDMI: Add support for HDMI audio switch device node

Add support for audio switch node in the HDMI driver that would
be used to notify audio userspace components of the availability
of an HDMI device.

CRs-Fixed: 412575
Change-Id: Idc41caf234810db52af9fcc89d2ed4ecbcaafc3b
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
2 files changed