Update radsecproxy package to v1.6.6.

net/radsecproxy/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=radsecproxy
-PKG_VERSION:=1.6.5
+PKG_VERSION:=1.6.6
 PKG_RELEASE:=1
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=http://software.uninett.no/radsecproxy/
-PKG_MD5SUM:=f74f82a7ae2cdf2b1d9d271a5c360617
+PKG_MD5SUM:=8270b2a9d7cb1dcf30ddd677f3e7ac5f
 
 PKG_INSTALL:=1