Add support for clone Mode.

Add support for clone Mode.

Not sure how to determine if we want to be in extended
or cloned mode in multi montior case. For now we default
to Cloned mode and this will need finetuning when we
have a better understanding of extended mode on Android.
There is a known issue that if external display is not
connected during boot up of Android, than it is never
recognized after that for some reason.

Jira: IAHWC-80
Test: Linux test apps and Android switches to clone mode
      automatically when multiple display are connected.

Signed-off-by: Kalyan Kondapally <kalyan.kondapally@intel.com>