RHEL gating tests: skip some tests under runc

Manual cherrypick of (portions of) #14972, for tests that
don't work under runc.

Signed-off-by: Ed Santiago <santiago@redhat.com>

test/system/200-pod.bats

@@ -474,9 +474,8 @@ spec:
 
 @test "pod resource limits" {
     skip_if_remote "resource limits only implemented on non-remote"
-    if is_rootless; then
-        skip "only meaningful for rootful"
-    fi
+    skip_if_rootless "resource limits only work with root"
+    skip_if_cgroupsv1 "resource limits only meaningful on cgroups V2"
 
     local name1="resources1"
     run_podman --cgroup-manager=systemd pod create --name=$name1 --cpus=5 --memory=10m

test/system/251-system-service.bats

@@ -17,6 +17,10 @@ function teardown() {
 
 @test "podman-system-service containers survive service stop" {
     skip_if_remote "podman system service unavailable over remote"
+    local runtime=$(podman_runtime)
+    if [[ "$runtime" != "crun" ]]; then
+        skip "survival code only implemented in crun; you're using $runtime"
+    fi
 
     port=$(random_free_port)
     URL=tcp://127.0.0.1:$port