demo: drop ubuntu-demo-opencl image

The version of the compute-runtime project installed in ubuntu-demo-opencl
is not working with the most recent GPUs anymore. Instead of updating it,
move to use pre-built images. This is inlined with our goal to speed-up CI
by skipping unnecessary demo images.

Signed-off-by: Mikko Ylinen <mikko.ylinen@intel.com>

Author: mythi

.github/workflows/ci.yaml

@@ -85,7 +85,6 @@ jobs:
           - openssl-qat-engine
           - sgx-sdk-demo
           - sgx-aesmd-demo
-          - ubuntu-demo-opencl
           - ubuntu-demo-openvino
         builder: [buildah, docker]
     steps:

demo/intelgpu-job.yaml

@@ -14,9 +14,9 @@ spec:
       containers:
         -
           name: intelgpu-demo-job-1
-          image: intel/ubuntu-demo-opencl:devel
+          image: intelopencl/intel-opencl:ubuntu-20.10-ppa
           imagePullPolicy: IfNotPresent
-          command: [ "/run-opencl-example.sh", "/root/6-1/fft" ]
+          command: [ "clinfo" ]
           resources:
             limits:
               gpu.intel.com/i915: 1