iot-ntp-client: Add void to functions with no parameters

Signed-off-by: Jack Styles <jack.styles@arm.com>

components/azure-iot-sdk-c/ntp-client/src/iot_ntp_client.c

@@ -436,7 +436,7 @@ iotNtpClientResult_t iotNtpClientInit(const iotNtpClientConfig_t *config)
     return IOT_NTP_CLIENT_OK;
 }
 
-iotNtpClientResult_t iotNtpClientDeinit()
+iotNtpClientResult_t iotNtpClientDeinit(void)
 {
     int res;
 
@@ -585,7 +585,7 @@ iotNtpClientResult_t iotNtpClientAddListener(iotNtpCb_t callback, void *context)
     return IOT_NTP_CLIENT_OK;
 }
 
-iotNtpClientResult_t iotNtpClientClearListeners()
+iotNtpClientResult_t iotNtpClientClearListeners(void)
 {
     if (ntp_context.state == IOT_NTP_CLIENT_UNINITIALISED) {
         LogError("NTP client not initialised");

release-changes/202307121500.change

+azure-iot-sdk-c: Bug fixes for glue code:
+- CMSIS 5 flag return types in `iot_ntp_client.c` and `platform_openiot.c`.
+- Missing fallthrough attribute has been added in `iot_ntp_client.c`.
+- Adding `(void)` to function that had no prarameters where this was missing in `iot_ntp_client.c`.