audio/msm7x30: Use q5v2_msm_audio_mvs_frame struct

Otherwise a packet size of 640, which 7x30 modem doesn't support,
will be used. 7x30 expects a packet size of 320.

Was changed in AudioHardware::AudioStreamOutDirect::write, but
seems to have been forgotten here.

Related kernel change: http://bit.ly/M7ZqMN

Change-Id: Ie89da836cbe27ea6b6cd10ef5c830ecc7020a624
audio/msm7630: Fix for Echo in Gtalk

- Echo is observed in Gtalk.
- Audio HAL informs that clients that it handle the Echo
  cancellation and with AHAL client turns off the EC.
- EC is not supported in this PL remove it from getparam
CRs-Fixed: 427161

Change-Id: I62eba7ed7566045f61c34a51c8ac36029b8596ea