update the freertos + TCP demos to use the neew API for getting the UDP pyaload buffer [FreeRTOS_GetUDPPayloadBuffer_ByIPType] (#938)

FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_Minimal_Windows_Simulator/DemoTasks/SimpleUDPClientAndServer.c

@@ -254,7 +254,7 @@ const size_t xStringLength = strlen( pcStringToSend ) + 15;
 			do
 			{
 			#if defined( FREERTOS_PLUS_TCP_VERSION ) && ( FREERTOS_PLUS_TCP_VERSION >= 10 )
-			} while( ( pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer( xStringLength, portMAX_DELAY, ipTYPE_IPv4 ) ) == NULL );
+			} while( ( pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer_ByIPType( xStringLength, portMAX_DELAY, ipTYPE_IPv4 ) ) == NULL );
 			#else
 			} while( ( pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer( xStringLength, portMAX_DELAY ) ) == NULL );
 			#endif

FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_UDP_Mode_CLI_Windows_Simulator/DemoTasks/SimpleClientAndServer.c

@@ -251,7 +251,7 @@ const size_t xStringLength = strlen( ( char * ) pucStringToSend ) + 15;
 			do
 			{
 			#if defined( FREERTOS_PLUS_TCP_VERSION ) && ( FREERTOS_PLUS_TCP_VERSION >= 10 )
-			} while( ( pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer( xStringLength, portMAX_DELAY, ipTYPE_IPv4 ) ) == NULL );
+			} while( ( pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer_ByIPType( xStringLength, portMAX_DELAY, ipTYPE_IPv4 ) ) == NULL );
 			#else
 			} while( ( pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer( xStringLength, portMAX_DELAY ) ) == NULL );
 			#endif

FreeRTOS-Plus/Demo/FreeRTOS_Plus_TCP_UDP_Mode_CLI_Windows_Simulator/DemoTasks/TwoEchoClients.c

@@ -297,7 +297,7 @@ const size_t xBufferLength = strlen( ( char * ) pucStringToSend ) + 15;
 			was actually obtained. */
 
 		#if defined( FREERTOS_PLUS_TCP_VERSION ) && ( FREERTOS_PLUS_TCP_VERSION >= 10 )
-			pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer( xBufferLength, portMAX_DELAY, ipTYPE_IPv4 );
+			pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer_ByIPType( xBufferLength, portMAX_DELAY, ipTYPE_IPv4 );
 		#else
 			pucUDPPayloadBuffer = ( uint8_t * ) FreeRTOS_GetUDPPayloadBuffer( xBufferLength, portMAX_DELAY );
 		#endif