package/zmqpp: add hash file

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/zmqpp/zmqpp.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256	92cb5bf7e1df8b99792fe1eb530bf91fced9c2d14159007bec011bb1b8248269  zmqpp-3.2.0.tar.gz