[packages] version bump of tinc to 1.0.17

[packages] version bump of tinc to 1.0.17

 * The DeviceType option can now be used to select dummy, raw socket, UML and VDE devices without needing to recompile tinc.

 * Allow multiple BindToAddress statements.

 * Decrement TTL value of IPv4 and IPv6 packets.

 * Add LocalDiscovery option allowing tinc to detect peers that are behind the same NAT.

 * Accept Subnets passed with the -o option when StrictSubnets = yes.

 * Disabling old RSA keys when generating new ones now also works properly on Windows.

git-svn-id: svn://svn.openwrt.org/openwrt/packages@31055 3c298f89-4303-0410-b956-a3cf2f4a3e73