Build product/odm build.prop with Soong

Bug: 322090587
Test: compare build.prop before and after, boot
Change-Id: I7a7dc785030a0c17e5c09b7f65c978fe9bbcb7a7
diff --git a/Android.bp b/Android.bp
index 8d1280c..432c7fc 100644
--- a/Android.bp
+++ b/Android.bp
@@ -149,3 +149,21 @@
     relative_install_path: "etc", // system_ext/etc/build.prop
     visibility: ["//visibility:private"],
 }
+
+build_prop {
+    name: "product-build.prop",
+    stem: "build.prop",
+    product_specific: true,
+    product_config: ":product_config",
+    relative_install_path: "etc", // product/etc/build.prop
+    visibility: ["//visibility:private"],
+}
+
+build_prop {
+    name: "odm-build.prop",
+    stem: "build.prop",
+    device_specific: true,
+    product_config: ":product_config",
+    relative_install_path: "etc", // odm/etc/build.prop
+    visibility: ["//visibility:private"],
+}