ASoc: msm: Increase default buffersize to 4k for audio playback

- Increase default buffersize to 4k from 2k for audio playback
  when HAL is configured with deep buffer output.

bug-id: 7129131
Signed-off-by: SathishKumar Mani <smani@codeaurora.org>

Change-Id: I12ddbbc2423552b1c069b435ec49839173bb4649
msm-pcm-q6: Add support for flexible recording period size

- Current implementation supports only fixed buffer size
  of 320 bytes only for audio recording. This results in
  performance overhead for recording at higher sample rate.
- Added support for flexible period size so that user can
  use larger buffers for recording at higher sample rates.

Signed-off-by: SathishKumar Mani<smani@codeaurora.org>
Signed-off-by: Iliyan Malchev <malchev@google.com>

Change-Id: I50c66bbe67b7d35ef299c4d1123a95ff7e9bedfb
ASoC: msm: Decrease the playback period size of PCM driver

To support the deep buffer output, the playback buffer size is
increased to 4k from 2k. Reverting the change as the support for
deep buffer output is no longer valid.

Change-Id: I5034245bde4b55a5816506fbdfeac970a8e7804b
CRs-Fixed: 438177
Signed-off-by: Subhash Chandra Bose Naripeddy <snariped@codeaurora.org>
asoc: msm: Add flexible period count to pcm record driver

 In pcm recording, if buffers are not requested from dsp at real
 time then dsp drops the buffers and sends partial buffers. This
 is causing record failures. Pcm record platform driver has two
 periods. If system is loaded, read request will not be at real
 time. Add flexible period count to pcm record platform driver
 so client can configure the period count.

CRs-Fixed: 467746
Change-Id: Iadd47979f7b29a01fb8e6479383094a2ed1d93c5
Signed-off-by: Krishnankutty Kolathappilly <kkolat@codeaurora.org>