Audio policy: Parse new audio policy configuration file

For treble, files shared between vendor and system must have a schema.
As .conf did not support such feature, transition to an xml based
configuration file.

This new format has several changes:
 - library path are now relative to the standard effect directories
 - effect parameters are no longer supported (nobody used them)

Test: Check that the dumpsys is similar than with the legacy formal
Bug: 37492580
Change-Id: Ie6bd84ed88124991600fa238cc13714874eefad9
Signed-off-by: Kevin Rocard <krocard@google.com>
diff --git a/services/audiopolicy/service/AudioPolicyEffects.h b/services/audiopolicy/service/AudioPolicyEffects.h
index 0c74d87..59d5d14 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.h
+++ b/services/audiopolicy/service/AudioPolicyEffects.h
@@ -155,7 +155,8 @@
     audio_stream_type_t streamNameToEnum(const char *name);
 
     // Parse audio_effects.conf
-    status_t loadAudioEffectConfig(const char *path);
+    status_t loadAudioEffectConfig(const char *path); // TODO: add legacy in the name
+    status_t loadAudioEffectXmlConfig(); // TODO: remove "Xml" in the name
 
     // Load all effects descriptors in configuration file
     status_t loadEffects(cnode *root, Vector <EffectDesc *>& effects);