ALSA: Compress - dont use lock for all ioctls

Some simple ioctls like timsetamp query, capabities query can be
done anytime and should not be under the stream lock. Move these to
snd_compress_simple_iotcls() which is invoked without lock held.

While at it, improve readblity a bit by sprinkling some empty lines.

Change-Id: Icc8ffdadd565c635f6a95e7e5bdda76257f24ea3
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Eric Laurent <elaurent@google.com>
Git-commit: 6a44374b8b92e9946dc1e5c15c2a11003aa859b1
Git-repo: https://android.googlesource.com/kernel/msm


[dhakumar@codeaurora.org: resolved merge conflicts]
Signed-off-by: Dhananjay Kumar <dhakumar@codeaurora.org>
[bgoswami@codeaurora.org: resolved merge conflicts]
Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: Meng Wang <mwang@codeaurora.org>