use MAX_RADIUS_ATTRIBUTE_SIZE constant from radius_message header file

src/libcharon/plugins/eap_ttls/Makefile.am

@@ -1,6 +1,7 @@
 
 INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libhydra \
-	-I$(top_srcdir)/src/libcharon -I$(top_srcdir)/src/libtls
+	-I$(top_srcdir)/src/libcharon -I$(top_srcdir)/src/libtls \
+	-I$(top_srcdir)/src/libradius
 
 AM_CFLAGS = -rdynamic
 

src/libcharon/plugins/eap_ttls/eap_ttls_peer.c

@@ -18,7 +18,7 @@
 
 #include <debug.h>
 #include <daemon.h>
-
+#include <radius_message.h>
 #include <sa/authenticators/eap/eap_method.h>
 
 typedef struct private_eap_ttls_peer_t private_eap_ttls_peer_t;
@@ -64,8 +64,6 @@ struct private_eap_ttls_peer_t {
 	eap_ttls_avp_t *avp;
 };
 
-#define MAX_RADIUS_ATTRIBUTE_SIZE	253
-
 METHOD(tls_application_t, process, status_t,
 	private_eap_ttls_peer_t *this, bio_reader_t *reader)
 {