hwsim: add ADD/DEL_MAC_ADDR events

These events are important to support both moving radios to other
namespaces, and to allow scan address randomization to work.

tools/hwsim.c

@@ -62,6 +62,8 @@ enum {
 	HWSIM_CMD_NEW_RADIO,
 	HWSIM_CMD_DEL_RADIO,
 	HWSIM_CMD_GET_RADIO,
+	HWSIM_CMD_ADD_MAC_ADDR,
+	HWSIM_CMD_DEL_MAC_ADDR,
 	__HWSIM_CMD_MAX,
 };
 #define HWSIM_CMD_MAX (__HWSIM_CMD_MAX - 1)