alsa_sound: Fix CAMCORDER_TX use case

* Enable use case by setting BOARD_USES_SEPERATED_CAMCORDER

Change-Id: Icabb0073f85e65455d5bbeae9b9b6956a8a78b90
Merge "alsa_sound: Fix CAMCORDER_TX use case" into cm-10.2
Merge remote-tracking branch 'upstream/cm-10.2' into cm-10.2