Use primitive type for TEID

teid_t is defined in platfrom_types.h, which defines a bunch of
4G-specific things. In an attempt to decouple from 4G types, do not use
it.

openair2/COMMON/f1ap_messages_types.h

@@ -344,7 +344,7 @@ typedef struct f1ap_ul_rrc_message_s {
 
 typedef struct f1ap_up_tnl_s {
   in_addr_t tl_address; // currently only IPv4 supported
-  teid_t  teid;
+  uint32_t teid;
   uint16_t port;
 } f1ap_up_tnl_t;