Revision 401762

Update security/strongswan to 5.3.4

PR:		204597
Submitted by:	strongswan@nanoteq.com (maintainer)
MFH:		2015Q4
Security:	CVE 2015-8023
Security:	https://github.com/strongswan/strongswan/commit/453e204ac40dfff2e0978e8f84a5f8ff0cbc45e2
Sponsored by:	Rubicon Communications (Netgate)