i9082: media_codecs: advertise that our encoders only support VBR

Change-Id: I6aba9064d867507a782fa16c14ba41870eb65209
i9082: enable miracast

Need to move audio_policy.conf here to fix remote submix configuration

Change-Id: Icbc200ac93af614531145b33cf7af3003e50f39a
i9082: update hardwareKeys and wakeKeys

Change-Id: Ib129faf69f9325699d5ee28367556711ece83b72
i9082: add include guard

Change-Id: I28743422607ae76f28dfb1113705ec91b1a477cc