Always send Game Content Type down to the HAL

Even if Game Content Type is not supported on the connected
display we need to propagate the requested state down
to the HAL. This is because some devices with external displays,
such as Android TV set-top boxes, use this signal to
disable/enable on-device processing.

Fixes: 202007307
Test: on a device where both ALLM and GAME content type are
      not supported, request minimal post processing from an
      app and using logs verify that setContentType(GAME)
      is called in the HAL
Change-Id: I8bc0d8de0ee54d4ff47d9979b75740aa12121190