snmppp: bump to 3.3.5

Also add a hash file.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/snmppp/snmppp.hash

@@ -0,0 +1,2 @@
+# Locally computed:
+sha256 65d8bef3fb0e28892b7768e4027c2873b5556fc89c5440008508bf8ec91764cd snmp++-3.3.5.tar.gz

package/snmppp/snmppp.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SNMPPP_VERSION = 3.3.4
+SNMPPP_VERSION = 3.3.5
 SNMPPP_SOURCE = snmp++-$(SNMPPP_VERSION).tar.gz
 SNMPPP_SITE = http://www.agentpp.com/download
 SNMPPP_DEPENDENCIES = host-pkgconf