Attempt to fix bin_prot on suse

Author: smuenzel

packages/bin_prot/bin_prot.v0.17.0/opam

@@ -24,6 +24,9 @@ depends: [
 depopts: [
   "mirage-xen-ocaml"
 ]
+conflicts: [
+  "mirage-xen-ocaml" {os-family == "opensuse" & os-distribution != "opensuse-tumbleweed"}
+]
 available: arch != "x86_32" & os != "freebsd"
 synopsis: "A binary protocol generator"
 description: "