audio: Update call state from RIL during silent mode

 -In silent mode, after call is rejected from Far end, RIL
  sets call state to active to play the network message and
  sets the call_state to inactive later without informing
  the telephony framework.So, setMode() is not called from
  framework.
 -Currently,we are updating call state only if there is any
  active call or call state being set from RIL is "active".
  Fix is to update the call state when inactive state is
  received from RIL for the same VSID

CRs-Fixed: 631062

Change-Id: I937341c48fd4950aab2e9e689712b47976b3c28d
postproc: Add exceptions for USB digital out

Change-Id: Idc7f926d31e855ea67dedfb579a9757316e3f526
audio: Disabled excessive logging in OMX AACEncoder

- Too many debug logs are enabled in AAC Encoder by default
- Fix is to disable all the logs except the error messages
  and logs indicating loading and unloading of the encoder

Change-Id: If4b37fb654b1c70796bfdc1c839839fab3ea20dc
CRs-Fixed: 619677