library/DIAMETER_Templates: fix flags in AIR templates

According to RFC 6733, section 3 "Diameter Header", if the 'R' bit
is set, the message is a request.  If the 'P' bit is set, the
message may be proxied, relayed, or redirected.

ts_DIA_AIR is a template for Authentication Information *Request*,
so the 'R' bit must be set.  Also, let's allow this message to be
proxied, relayed, or redirected by setting the 'P' bit by default.

In tr_DIA_AIR, do not match all command flags, just ensure that
the message is a request.  Other flags do not matter.

Change-Id: I7db3b632189eed09c1bdf98f9d588491d928e2f5
Related: SYS#5602
diff --git a/library/DIAMETER_Templates.ttcn b/library/DIAMETER_Templates.ttcn
index a30a565..1b3ffdb 100644
--- a/library/DIAMETER_Templates.ttcn
+++ b/library/DIAMETER_Templates.ttcn
@@ -891,7 +891,7 @@
 	   template (value) charstring dest_realm := "localdomain",
 	   template (value) UINT32 hbh_id := '00000000'O,
 	   template (value) UINT32 ete_id := '00000000'O) :=
-	ts_DIAMETER(flags := '00000000'B,
+	ts_DIAMETER(flags := '11000000'B,
 		    cmd_code := Authentication_Information,
 		    hbh_id := hbh_id,
 		    ete_id := ete_id,
@@ -909,7 +909,7 @@
 	   template (present) charstring dest_realm := ?,
 	   template (present) UINT32 hbh_id := ?,
 	   template (present) UINT32 ete_id := ?) :=
-	tr_DIAMETER(flags := '11000000'B,
+	tr_DIAMETER(flags := '1???????'B,
 		    cmd_code := Authentication_Information,
 		    app_id := int2oct(c_DIAMETER_3GPP_S6_AID, 4),
 		    hbh_id := hbh_id, ete_id := ete_id,