Rename ro.vendor.product.* to ro.product.vendor.*

"ro.vendor." prefix will be used only for vendor-specific properties
except for ro.vendor.build.date, ro.vendor.build.date.utc and
ro.vendor.build.fingerprint.

Those exceptions have been used since Android L. So we can't rename them
to support the system-only upgrade from old Android.

Bug: 36796459
Test: confirmed that ro.vendor.product.* were changed to
ro.product.vendor.* in vendor/build.prop

Merged-In: Ibc107b00264a2dc194261d1968b27a9b17b5d798
Change-Id: Ibc107b00264a2dc194261d1968b27a9b17b5d798
(cherry picked from commit 8cf64432645403b34b547ebc026cd780c2414620)
diff --git a/tools/vendor_buildinfo.sh b/tools/vendor_buildinfo.sh
index 485ada3..c12f7cb 100755
--- a/tools/vendor_buildinfo.sh
+++ b/tools/vendor_buildinfo.sh
@@ -6,10 +6,10 @@
 echo "ro.product.board=$TARGET_BOOTLOADER_BOARD_NAME"
 echo "ro.board.platform=$TARGET_BOARD_PLATFORM"
 
-echo "ro.vendor.product.manufacturer=$PRODUCT_MANUFACTURER"
-echo "ro.vendor.product.model=$PRODUCT_MODEL"
-echo "ro.vendor.product.brand=$PRODUCT_BRAND"
-echo "ro.vendor.product.name=$PRODUCT_NAME"
-echo "ro.vendor.product.device=$TARGET_DEVICE"
+echo "ro.product.vendor.manufacturer=$PRODUCT_MANUFACTURER"
+echo "ro.product.vendor.model=$PRODUCT_MODEL"
+echo "ro.product.vendor.brand=$PRODUCT_BRAND"
+echo "ro.product.vendor.name=$PRODUCT_NAME"
+echo "ro.product.vendor.device=$TARGET_DEVICE"
 
 echo "# end build properties"