Move Session apis to android.media.session

This is to make it easier to distinguish the new apis from the old
ones.

Change-Id: Ic5eaf65e8bd054a844f87b9118c4bb18f30ac8a7
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 1e49fcb..448b03d 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -186,6 +186,7 @@
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/framework-res_intermediates)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework-base_intermediates/src/core/java/android/print/IPrintClient.*)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/services_intermediates)
+$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework-base_intermediates/src/media/java/android/media/IMedia*)
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************