strongswan: bump to 5.6.3

Fixes the following CVEs:
- CVE-2018-5388
- CVE-2018-10811

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

net/strongswan/Makefile

@@ -8,11 +8,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=strongswan
-PKG_VERSION:=5.6.2
+PKG_VERSION:=5.6.3
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
-PKG_HASH:=e0a60a30ebf3c534c223559e1686497a21ded709a5d605c5123c2f52bcc22e92
+PKG_HASH:=c3c7dc8201f40625bba92ffd32eb602a8909210d8b3fac4d214c737ce079bf24
 PKG_SOURCE_URL:=http://download.strongswan.org/ http://download2.strongswan.org/
 PKG_LICENSE:=GPL-2.0+
 PKG_MAINTAINER:=Stijn Tintel <stijn@linux-ipv6.be>