ANDROID: GKI: sound: pcm: Add field hw_no_buffer to snd_pcm_substream

This is required to resolve ABI diff.

Test: build
Bug: 151372815
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Patrick Lai <plai@codeaurora.org>
Git-commit: efea68f4f76c7d921201bbb1410a370dfd5ce83c
Git-repo: https://source.codeaurora.org/quic/la/kernel/msm/log/?h=msm-2.6.38


[bgoswami@codeaurora.org: Fix checkpatch errors
 for line over 80 characters in commit text.]
Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: Meng Wang <mwang@codeaurora.org>
Change-Id: I4e16ea255a81643902b23d4f3e7b984ed2cbe9a0
(cherry picked from commit 563a50719ce95deacba1d04f56eaac1258c0281e)
[hridya: commit amended to only include ABI diff]
Signed-off-by: Hridya Valsaraju <hridya@google.com>