[headers] Added droid-util headers for 4.4

Copied from droid-util-42.h
[util] Recognise AUDIO_DEVICE_OUT_PROXY
[util] Add AUDIO_DEVICE_OUT_PROXY in output device conversion table
[util] Recognise AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD, AUDIO_OUTPUT_FLAG_NON_BLOCKING
[util] Recognise AUDIO_CHANNEL_IN_FRONT_BACK
[util] Do not fail while parsing speaker_drc_enabled entry in audio_policy.conf

Fixed parsing following section in /system/etc/audio_policy.conf

global_configuration {
  attached_output_devices AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_SPEAKER
  default_output_device AUDIO_DEVICE_OUT_SPEAKER
  attached_input_devices AUDIO_DEVICE_IN_BUILTIN_MIC|AUDIO_DEVICE_IN_BACK_MIC|AUDIO_DEVICE_IN_REMOTE_SUBMIX
  speaker_drc_enabled TRUE
}
[util] speaker_drc_enabled is only from HAL v2

Signed-off-by: Simonas Leleiva <simonas.leleiva@jollamobile.com>
Merge pull request #13 from sledges/hybris-11.0

Support Hammerhead
[card] Refactor virtual profiles.
[card] Add availability to virtual profile and deny activating unavailable profile.
[source] Add support for voicecall source.

When device is provided when calling pa_droid_source_new() and device is
AUDIO_DEVICE_IN_VOICE_CALL, force mono channels and hal channel mask for
recording from both uplink and downlink.
[module-droid-source] Use updated droid-source.
[card] Add support for virtual profile extensions and voicecall record.

When in voicecall profile, one can switch to voicecall-record profile,
which destroys active sources and creates source specifically for
voicecall recording.
[build] Autogenerate DROID_DEVICE_FOO for droid device.
[util] Refactor HAL includes to per-droid-version headers.
[util] Define QCOM_HARDWARE for Hammerhead (Nexus 5).
[source] Use AUDIO_IN_VOICE_CALL_MONO only with QC hardware.
[util] Remove static from headers.
[util] Define QCOM_HARDWARE for Sbj (Jolla).
[util] Add hint when checking android version.