Update BuildRock5ForOpenHD.yaml

Author: raphaelscholle

.github/workflows/BuildRock5ForOpenHD.yaml

@@ -26,7 +26,7 @@ jobs:
       - name: prepare build
         run: |
           echo "Branch: ${{ github.ref_name }}"
-          #BRANCH=${{ github.ref_name }}
+          BRANCH=${{ github.ref_name }}
           git clone https://github.com/radxa-repo/bsp --recursive
           cd bsp
           chmod +x bsp