ci: Add sanity checking that dEQP gets the expected GL_RENDERER.

It's easy to get something wrong in the driver build or container or
something that results in falling back to swrast, and then your only clue
was runtime and how your failure cases suspiciously match a swrast
driver's.

Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4621>

.gitlab-ci/deqp-runner.sh

@@ -188,6 +188,11 @@ parse_renderer() {
     VERSION=`grep -A1 TestCaseResult.\*info.version $RESULTS/deqp-info.qpa | grep '<Text' | sed 's|.*<Text>||g' | sed 's|</Text>||g'`
     echo "Renderer: $RENDERER"
     echo "Version: $VERSION "
+
+    if ! echo $RENDERER | grep -q $DEQP_EXPECTED_RENDERER; then
+        echo "Expected GL_RENDERER $DEQP_EXPECTED_RENDERER"
+        exit 1
+    fi
 }
 
 check_renderer() {