GSUP: Fix spare and pdp_type_org fields swapped in PDPAddress IE

A recent commit added records to separate 2 binary octets into known
fields, but 2 fields filling 1 byte were actually written swapped. Fix
it now.

Fixes: 7b7a1e8ed16e41d95aed72a15f4ddf1857566b2e
Change-Id: I884bddb0e1e5f1cfc5615c11d6c7d602d0df9224
diff --git a/library/GSUP_Templates.ttcn b/library/GSUP_Templates.ttcn
index 68e4fd1..291b59a 100644
--- a/library/GSUP_Templates.ttcn
+++ b/library/GSUP_Templates.ttcn
@@ -61,8 +61,8 @@
 
 template (value) GSUP_PDP_Address ts_GSUP_PDP_Address_IPv4(template (omit) OCT4 ip_addr) := {
 	ipv4 := {
-		pdp_typeorg := '0001'B,
 		spare := '1111'B,
+		pdp_typeorg := '0001'B,
 		pdp_typenum := '21'O,
 		ipv4_address := ip_addr
 	}