audio: Do not delete PatchRecord before Peer is stopped

- PatchRecord is deleted before the Peer PatchTrack is completely
  stopped which is leading to a crash in getNextBuffer
- Fix is to delete PatchRecord and PatchTrack only after removing
  both of them from active tracks list

Change-Id: I8e982d9eece09c948ed448eb870d78830df1bfa8
nuplayer: Fix PCM offload turning on all the time

 * Remove the extra condition, since this will be set even if
   PCM offload was denied.

Change-Id: I8f33ef68562d8e057e7a86c5ae6187d0049bf3aa
libmedia: Add ICS AudioStreamType constructor

Needed for Samsung legacy camera libs.

Change-Id: If03d8525b55181ea20dc934dbcbfef85402c42c7
libmedia: Add legacy compatible overloads for some methods

These overloads are needed by Samsung legacy camera libs.

Change-Id: I12590b1e86c2e0fa9958c5baa714110ff77a5eec
av: Clean up QCOM build flags

 * Remove dead flags
 * Enable standard flags by default

Change-Id: I15b4743a2569360dcb5798f2f1d8f4390a68899a