add webrtc_enable_dtls=false (for webrtc) or enable_dtls=true (for normal calls)

src/include/switch_types.h

@@ -1301,6 +1301,7 @@ typedef enum {
 	CF_ICE,
 	CF_DTLS,
 	CF_VERBOSE_SDP,
+	CF_DTLS_OK,
 	/* WARNING: DO NOT ADD ANY FLAGS BELOW THIS LINE */
 	/* IF YOU ADD NEW ONES CHECK IF THEY SHOULD PERSIST OR ZERO THEM IN switch_core_session.c switch_core_session_request_xml() */
 	CF_FLAG_MAX