Add product and system_ext partition for emulator

Build product and system_ext image and add them to super partition.

Bug: 138382074
Test: boot emulator and check system_ext partition mounted
Change-Id: Ifa67bd6ad475ac5912e8f919c7a771c9958bd5c2
Merged-In: Ifa67bd6ad475ac5912e8f919c7a771c9958bd5c2
(cherry picked from commit 28843c3e3218bcd05e5c5f05ffacb87558d9e8b8)
diff --git a/CleanSpec.mk b/CleanSpec.mk
index f43fa0e..ec031d1 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -646,6 +646,10 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/odm/build.prop)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/odm/build.prop)
 
+# Move product and system_ext to root for emulators
+$(call add-clean-step, rm -rf $(OUT_DIR)/target/product/generic*/*/product)
+$(call add-clean-step, rm -rf $(OUT_DIR)/target/product/generic*/*/system_ext)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************