Rename AOSP builds to aosp_*

Change-Id: I25589f2282f6757dc17ba9fbd577ce83eb60cd31
diff --git a/AndroidProducts.mk b/AndroidProducts.mk
index 922db7b..10c9550 100644
--- a/AndroidProducts.mk
+++ b/AndroidProducts.mk
@@ -14,4 +14,4 @@
 # limitations under the License.
 #
 
-PRODUCT_MAKEFILES := $(LOCAL_DIR)/full_manta.mk
+PRODUCT_MAKEFILES := $(LOCAL_DIR)/full_manta.mk $(LOCAL_DIR)/aosp_manta.mk