openvpn: add hash file

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/openvpn/openvpn.hash

@@ -0,0 +1,2 @@
+# Locally calculated after checking pgp signature
+sha256	1ccd72c99e5c5627a7f7eb826489027dad35ce260b925b49dfc1f90bd24719ee	openvpn-2.3.4.tar.xz