rpm: require new enough linux stubdom to support -qubes-net option

QubesOS/qubes-issues#5022

rpm_spec/core-dom0.spec.in

@@ -83,7 +83,7 @@ Conflicts:      qubes-gui-dom0 < 1.1.13
 %if x%{?backend_vmm} == xxen
 Requires:       xen-runtime
 Requires:       xen-hvm
-Requires:       xen-hvm-stubdom-linux
+Requires:       xen-hvm-stubdom-linux >= 1.0.13
 Requires:       libvirt-daemon-xen >= 3.3.0-7
 %endif
 Requires:       cronie