Extract finalization build to a separate script.

For finalization CI we'll do multiple builds and tests in a separate
branch.

Bug: 243966946
Test: abdt in nightly
Change-Id: Ie90705de3145c06363536613e57c0de504b5eb1b
diff --git a/finalize_branch_for_release.sh b/finalize_branch_for_release.sh
index c5114fe..b46390d 100755
--- a/finalize_branch_for_release.sh
+++ b/finalize_branch_for_release.sh
@@ -8,39 +8,8 @@
     # default target to modify tree and build SDK
     local m="$top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_arm64 TARGET_BUILD_VARIANT=userdebug"
 
-    # This script is WIP and only finalizes part of the Android branch for release.
-    # The full process can be found at (INTERNAL) go/android-sdk-finalization.
-
-    # VNDK snapshot (TODO)
-    # SDK snapshots (TODO)
-    # Update references in the codebase to new API version (TODO)
-    # ...
-
-    AIDL_TRANSITIVE_FREEZE=true $m aidl-freeze-api create_reference_dumps
-
-    # Generate ABI dumps
-    ANDROID_BUILD_TOP="$top" \
-        out/host/linux-x86/bin/create_reference_dumps \
-        -p aosp_arm64 --build-variant user
-
-    # Update new versions of files. See update-vndk-list.sh (which requires envsetup.sh)
-    $m check-vndk-list || \
-        { cp $top/out/soong/vndk/vndk.libraries.txt $top/build/make/target/product/gsi/current.txt; }
-
-    # Finalize resources
-    "$top/frameworks/base/tools/aapt2/tools/finalize_res.py" \
-           "$top/frameworks/base/core/res/res/values/public-staging.xml" \
-           "$top/frameworks/base/core/res/res/values/public-final.xml"
-
-    # SDK finalization
-    local sdk_codename='public static final int UPSIDE_DOWN_CAKE = CUR_DEVELOPMENT;'
-    local sdk_version='public static final int UPSIDE_DOWN_CAKE = 34;'
-    local sdk_build="$top/frameworks/base/core/java/android/os/Build.java"
-
-    sed -i "s%$sdk_codename%$sdk_version%g" $sdk_build
-
-    # Update the current.txt
-    $m update-api
+    # Build finalization artifacts.
+    source $top/build/make/finalize-aidl-vndk-sdk-resources.sh
 
     # This command tests:
     #   The release state for AIDL.