Migrate tests to tests/libomp repo

tests/README.md

@@ -0,0 +1,6 @@
+# Gating testplans for libomp
+
+The tests for libomp are in a separate repo: https://src.fedoraproject.org/tests/libomp
+This directory should contain only fmf plans (such as build-gating.fmf) which import
+the tests from the tests repo. This can be done using the "url" parameter of the
+plan's "discover" step. Reference: https://tmt.readthedocs.io/en/stable/spec/plans.html#fmf

tests/build-gating.fmf

@@ -29,10 +29,14 @@ adjust:
     when: "collection == llvm-toolset-14.0"
 
 discover:
+    - name: libomp-tests
+      how: fmf
+      url: https://src.fedoraproject.org/tests/libomp.git
+      ref: main
     - name: upstream-llvm-integration-testsuite
       how: fmf
-      url: https://src.fedoraproject.org/rpms/llvm.git
-      ref: rawhide
+      url: https://src.fedoraproject.org/tests/llvm.git
+      ref: main
       test: integration-test-suite
 execute:
     how: tmt