build audio_policy.msm7x30

No clue if this change anything. Almost blind tests ftw.

Change-Id: Ifb21e3ac037fd305465375b9acbda6970314acea
change audio_policy.conf to match values found in audio-legacy

Change-Id: Ic19dda0beda98e92c751492532627dca49314b22
Merge branch 'cm-11.0' of https://github.com/Mustaavalkosta/android_device_htc_msm7x30-common into cd-4.4