qdsp5: memset stack buffer allocation.

This is needed to avoid garbage data in uninitialized variables.

Change-Id: I3a043a4ce4e14d8e0c24b434181dff484eddac72
CRs-Fixed: 551548
CRs-Fixed: 551542
CRs-Fixed: 551555
CRs-Fixed: 551563
CRs-Fixed: 551566
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>

Conflicts:

	arch/arm/mach-msm/qdsp5v2/audio_amrnb_in.c
	arch/arm/mach-msm/qdsp5v2/audio_qcelp_in.c
msm: qdsp5v2: Increase buffersize of hostPCM interface.

The default audio sample rate of audioflinger is increased
from 44.1k to 48k.Increase the buffersize to take
advantage of that.

Change-Id: I7ffc6c697cb32b6983c9bb5cc6ea73a7a55b5006
Signed-off-by: Sidipotu Ashok <sashok@codeaurora.org>

Conflicts:

	arch/arm/mach-msm/qdsp5v2/audio_out.c
Merge branch 'cm-11.0-wip' into cm-11.0