Run all internal polkit tests in gating

The internal polkit test suite has reasonable runtime, so let's run
everything during gating for extra coverage.

gating.yaml

@@ -3,4 +3,5 @@ product_versions:
   - rhel-*
 decision_context: osci_compose_gate
 rules:
-  - !PassingTestCaseRule {test_case_name: osci.brew-build./plans/tier1-internal.functional}
+  - !PassingTestCaseRule {test_case_name: osci.brew-build./plans/all-buildroot-internal.functional}
+  - !PassingTestCaseRule {test_case_name: osci.brew-build./plans/all-no-buildroot-internal.functional}

plans.fmf

@@ -1,10 +1,11 @@
-/tier1-internal:
-    discover:
-        how: fmf
-        url: https://gitlab.com/redhat/rhel/tests/polkit.git
-        filter: 'tier: 1'
-    execute:
-        how: tmt
-    adjust:
-        enabled: false
-        when: distro == centos-stream or distro == fedora
+/all-buildroot-internal:
+  plan:
+    import:
+      url: https://pkgs.devel.redhat.com/git/tests/polkit
+      name: /plans/all-buildroot
+
+/all-no-buildroot-internal:
+  plan:
+    import:
+      url: https://pkgs.devel.redhat.com/git/tests/polkit
+      name: /plans/all-no-buildroot