ci/zink: Simplify lavapipe rules setup, and clarify what the rules are for.

Reviewed-by: Guilherme Gallo <guilherme.gallo@collabora.com>
Acked-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17287>

.gitlab-ci/test-source-dep.yml

@@ -485,15 +485,11 @@
       - src/gallium/drivers/zink/**/*
       when: on_success
 
-.zink-rules:
+.zink-lvp-rules:
   stage: layered-backends
   rules:
-    - !reference [.no_scheduled_pipelines-rules, rules]
     - !reference [.zink-common-rules, rules]
-    - changes:
-        *lavapipe_file_list
-      when: on_success
-    - when: never
+    - !reference [.lavapipe-rules, rules]
 
 .zink-anv-rules:
   stage: layered-backends

src/gallium/drivers/zink/ci/gitlab-ci.yml

@@ -1,6 +1,6 @@
 .zink-lvp-test:
   extends:
-    - .zink-rules
+    - .zink-lvp-rules
   variables:
     MESA_LOADER_DRIVER_OVERRIDE: "zink"
     LIBGL_ALWAYS_SOFTWARE: "true"