ci: use ddk for faster ci, manual gki image build

Co-authored-by: Ylarod <me@ylarod.cn>

.github/workflows/build-gki-image.yml

@@ -0,0 +1,32 @@
+name: Build Android GKI Image
+on:
+  workflow_call:
+  workflow_dispatch:
+    inputs:
+      debug:
+        description: 'Build debug kernel'
+        required: false
+        type: boolean
+        default: false
+
+jobs:
+  build-a12-kernel:
+    uses: ./.github/workflows/build-kernel-a12.yml
+    secrets: inherit
+    with:
+      debug: ${{ github.event.inputs.debug || false }}
+  build-a13-kernel:
+    uses: ./.github/workflows/build-kernel-a13.yml
+    secrets: inherit
+    with:
+      debug: ${{ github.event.inputs.debug || false }}
+  build-a14-kernel:
+    uses: ./.github/workflows/build-kernel-a14.yml
+    secrets: inherit
+    with:
+      debug: ${{ github.event.inputs.debug || false }}
+  build-a15-kernel:
+    uses: ./.github/workflows/build-kernel-a15.yml
+    secrets: inherit
+    with:
+      debug: ${{ github.event.inputs.debug || false }}