universal7904: Create /metadata mount point

Change-Id: I6cae430d46ded689cbdb4e110746e787007709a8
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index cd06393..25b0115 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -56,6 +56,9 @@
 ODM_MANIFEST_SKUS += NFC
 ODM_MANIFEST_NFC_FILES := $(COMMON_PATH)/manifest_nfc.xml
 
+# Metadata
+BOARD_USES_METADATA_PARTITION := true
+
 # Partitions
 BOARD_BOOTIMAGE_PARTITION_SIZE := 33554432
 BOARD_CACHEIMAGE_PARTITION_SIZE := 157286400