Clean steps for a product configuration change.

Cleans up intermediates produced for a prebuilt app
included in some product configurations.
diff --git a/cleanspec.mk b/cleanspec.mk
index 8def002..43d3630 100644
--- a/cleanspec.mk
+++ b/cleanspec.mk
@@ -90,6 +90,8 @@
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/product/*/system/app/Launcher.apk)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/bluetooth/)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/product/sholes/system/build.prop)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/com.amazon.mp3_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/com.amazon.mp3.apk)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST