ci: disable packdebs for r2 because of build-error in mt6625 driver

Author: frank-w

.github/workflows/build.yml

@@ -95,7 +95,6 @@ jobs:
           bash build.sh cryptodev
       - name: Pack for bananapi-r2
         run: |
-          bash build.sh pack_debs
           bash build.sh pack
 
       - name: Build for bananapi-r64