spec: add socat dependency for qvm-console* tools

rpm_spec/core-dom0.spec.in

@@ -92,6 +92,9 @@ Requires:       scrypt
 Requires:       dmidecode
 Requires:       PyQt4
 
+# Required for qvm-console* tools
+Requires:       socat
+
 %{?systemd_requires}
 
 Obsoletes:	qubes-core-dom0-doc <= 4.0