audio policy: remove deserialization from policy objects

This patch removes the responsability of the deserialization of all
objects managed by the policy by:
-adding required accessors
-moving deserialization function to Config parser helper
-adds a TypeConverter to associate string to / from values of all
audio enumeration shared between HALs and policy.

Change-Id: I1ce798848f4657b37e47446c9fbdc63f7ed0390e
Signed-off-by: François Gaffie <francois.gaffie@intel.com>
diff --git a/services/audiopolicy/common/managerdefinitions/Android.mk b/services/audiopolicy/common/managerdefinitions/Android.mk
index 6cd8b40..dc7eff7 100644
--- a/services/audiopolicy/common/managerdefinitions/Android.mk
+++ b/services/audiopolicy/common/managerdefinitions/Android.mk
@@ -17,7 +17,8 @@
     src/ConfigParsingUtils.cpp \
     src/SoundTriggerSession.cpp \
     src/SessionRoute.cpp \
-    src/AudioSourceDescriptor.cpp
+    src/AudioSourceDescriptor.cpp \
+    src/TypeConverter.cpp
 
 LOCAL_SHARED_LIBRARIES := \
     libcutils \
@@ -27,7 +28,8 @@
 LOCAL_C_INCLUDES += \
     $(LOCAL_PATH)/include \
     $(TOPDIR)frameworks/av/services/audiopolicy/common/include \
-    $(TOPDIR)frameworks/av/services/audiopolicy
+    $(TOPDIR)frameworks/av/services/audiopolicy \
+    $(TOPDIR)frameworks/av/services/audiopolicy/utilities \
 
 LOCAL_EXPORT_C_INCLUDE_DIRS := \
     $(LOCAL_PATH)/include