Update gki-kernel.yml

.github/workflows/gki-kernel.yml

@@ -64,18 +64,7 @@ jobs:
           echo "CONFIG=$CONFIG" >> $GITHUB_ENV
 
           echo "CONFIG set to: $CONFIG"
-
-      #- name: Download prebuilt toolchain
-      #  run: |
-      #    AOSP_MIRROR=https://android.googlesource.com
-      #    BRANCH=main-kernel-build-2024
-      #    git clone $AOSP_MIRROR/kernel/prebuilts/build-tools -b $BRANCH --depth 1 kernel-build-tools
-      #    git clone $AOSP_MIRROR/platform/system/tools/mkbootimg -b $BRANCH --depth 1 mkbootimg
-#
-#          echo "AVBTOOL=$GITHUB_WORKSPACE/kernel-build-tools/linux-x86/bin/avbtool" >> $GITHUB_ENV
-#          echo "MKBOOTIMG=$GITHUB_WORKSPACE/mkbootimg/mkbootimg.py" >> $GITHUB_ENV
-#          echo "UNPACK_BOOTIMG=$GITHUB_WORKSPACE/mkbootimg/unpack_bootimg.py" >> $GITHUB_ENV
-
+          
       - name: Cache prebuilt toolchain
         id: cache-toolchain
         uses: actions/cache@v4
@@ -83,10 +72,9 @@ jobs:
           path: |
             kernel-build-tools
             mkbootimg
-          key: toolchain-${{ runner.os }}-${{ hashFiles('**/workflow.yml') }}
-          restore-keys: |
-            toolchain-${{ runner.os }}-
-
+          key: toolchain-${{ runner.os }}-v1  # Use a fixed version key to ensure reusability
+          restore-keys: toolchain-${{ runner.os }}-
+      
       - name: Download prebuilt toolchain (if cache is missing)
         if: steps.cache-toolchain.outputs.cache-hit != 'true'
         run: |