Move SDP templates to its own SDP_Templates.ttcn file

SDP is used in other protocols than MGCP, eg. SIP.

Change-Id: I0610b4cf5533e46a3401c65e60c7cce975c85412
diff --git a/msc/gen_links.sh b/msc/gen_links.sh
index 8463976..a15c42d 100755
--- a/msc/gen_links.sh
+++ b/msc/gen_links.sh
@@ -96,7 +96,7 @@
 FILES+="IPA_Types.ttcn IPA_Emulation.ttcnpp IPA_CodecPort.ttcn IPA_CodecPort_CtrlFunct.ttcn IPA_CodecPort_CtrlFunctDef.cc "
 FILES+="PCO_Types.ttcn GSUP_Types.ttcn GSUP_Templates.ttcn GSUP_Emulation.ttcn "
 FILES+="Osmocom_CTRL_Types.ttcn Osmocom_CTRL_Functions.ttcn Osmocom_CTRL_Adapter.ttcn L3_Templates.ttcn RLCMAC_CSN1_Templates.ttcn RLCMAC_CSN1_Types.ttcn L3_Common.ttcn "
-FILES+="RAN_Emulation.ttcnpp BSSAP_CodecPort.ttcn BSSMAP_Templates.ttcn RAN_Adapter.ttcnpp MGCP_Types.ttcn MGCP_Templates.ttcn MGCP_CodecPort_CtrlFunct.ttcn MGCP_Emulation.ttcn "
+FILES+="RAN_Emulation.ttcnpp BSSAP_CodecPort.ttcn BSSMAP_Templates.ttcn RAN_Adapter.ttcnpp SDP_Templates.ttcn MGCP_Types.ttcn MGCP_Templates.ttcn MGCP_CodecPort_CtrlFunct.ttcn MGCP_Emulation.ttcn "
 FILES+="RTP_CodecPort.ttcn RTP_CodecPort_CtrlFunctDef.cc "
 FILES+="MGCP_CodecPort.ttcn MGCP_CodecPort_CtrlFunctDef.cc "
 FILES+="SMPP_CodecPort.ttcn SMPP_CodecPort_CtrlFunct.ttcn SMPP_CodecPort_CtrlFunctDef.cc SMPP_Emulation.ttcn SMPP_Templates.ttcn "