Change build type and update tag suffix in backend.yml

Signed-off-by: Ettore Di Giacinto <[email protected]>

Author: mudler

.github/workflows/backend.yml

@@ -882,7 +882,7 @@ jobs:
             backend: "rfdetr"
             dockerfile: "./backend/Dockerfile.python"
             context: "./backend"
-          - build-type: 'cublas'
+          - build-type: 'l4t'
             cuda-major-version: "12"
             cuda-minor-version: "0"
             platforms: 'linux/arm64'
@@ -955,13 +955,13 @@ jobs:
             backend: "exllama2"
             dockerfile: "./backend/Dockerfile.python"
             context: "./backend"
-          - build-type: 'cublas'
+          - build-type: 'l4t'
             cuda-major-version: "12"
             cuda-minor-version: "0"
             platforms: 'linux/arm64'
             skip-drivers: 'true'
             tag-latest: 'auto'
-            tag-suffix: '-nvidia-l4t-arm64-chatterbox'
+            tag-suffix: '-gpu-nvidia-l4t-arm64-chatterbox'
             base-image: "nvcr.io/nvidia/l4t-jetpack:r36.4.0"
             runs-on: 'ubuntu-24.04-arm'
             backend: "chatterbox"