Added opeation mode validation for detect unsupported values.

Change-Id: Ie41ae8d5e1ebc25b7bb9011f247891c3ecbd34ab

Author: Juha Heiskanen

source/6LoWPAN/ws/ws_common.c

@@ -137,6 +137,11 @@ static int ws_set_domain_rf_config(protocol_interface_info_entry_t *cur)
 
 int8_t ws_common_regulatory_domain_config(protocol_interface_info_entry_t *cur)
 {
+    if (ws_get_datarate_using_operating_mode(cur->ws_info->hopping_schdule.operating_mode) == 0) {
+        //Unsupported operation mode
+        return -1;
+    }
+
     cur->ws_info->hopping_schdule.channel_plan = 0;
 
     if (cur->ws_info->hopping_schdule.regulatory_domain == REG_DOMAIN_KR) {