msm: camera: Enable camera on 8064

Camera requires a platform device as well as
i2c, clock, and gpio configuration information,
so these must be added for 8064 if camera
is to be supported on that target.
Also added i2c_mux configuration for 2D camera,
to initialize i2c mux controller on 8064.

Change-Id: I680c277b6631af85448a49ae6a04c4b40297e370
Signed-off-by: Kevin Chan <ktchan@codeaurora.org>