If RunAsUser is set, also set runAsNonRoot and seccompProfile

Reviewer suggested I also set runAsNonRoot and seccompProfile
in addtion to RunAsUser.  I tried this on IBM cloud and it seems
to work fine.  Note that this likely won't work if the runAsUser
is not set, because then the runAsNonRoot: true will cause the
container to fail to start up because the container itself is
built to default to run as root.

Author: bradbehle

bindata/network/ovn-kubernetes/managed/ovnkube-control-plane.yaml

@@ -291,6 +291,9 @@ spec:
       {{- if .RunAsUser }}
       securityContext:
         runAsUser: {{.RunAsUser}}
+        runAsNonRoot: true
+        seccompProfile:
+          type: RuntimeDefault
       {{- end }}
       volumes:
       - name: ovnkube-config