Merge pull request signalwire#2253 from signalwire/fix_ice_flopping

[core] Fix flopping routes on ICE negotiation

Author: andywolk

src/include/switch_rtp.h

@@ -103,6 +103,8 @@ typedef struct icand_s {
 	switch_port_t rport;
 	char *generation;
 	uint8_t ready;
+	uint8_t responsive;
+	uint8_t use_candidate;
 } icand_t;
 
 #define MAX_CAND 50