Compute the audio data buffer size based on stream characteristics

Use the audio data stream characteristics (sample rate, bits per sample,
channel mode) to compute the audio stream output buffer size from
the Audio A2DP HAL to the Bluetooth stack.

Previously, the buffer size was pre-computed based on the original
(44.1kHz, 16 bits per sample, Stereo) PCM audio stream used by SBC.
NOTE: We cannot change the buffer size on the receiver side (Bluetooth),
because SO_RCVBUF option does not have effect for Domain Sockets.

Also, removed uipc_linux.h header file, because it is not used.

Test: A2DP streaming and switching the codecs, sample rate, bits per sample
Bug: 35849921
Change-Id: Ib6772f7564442ac18a02876a5aa5e3208e5aade1