feat (uart): uses the same IDF 32bits size for TX/RX buffers.

Uses the same IDF 32bits size for TX/RX buffers.

Changed header files to use the same IDF buffer limits.
* this is a backport from PR #9554

Author: SuGlider

Diff for: cores/esp32/esp32-hal-uart.c

@@ -301,7 +301,7 @@ bool uartSetHwFlowCtrlMode(uart_t *uart, uart_hw_flowcontrol_t mode, uint8_t thr
 }
 
 // This helper function will return true if a new IDF UART driver needs to be restarted and false if the current one can continue its execution
-bool _testUartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint16_t rx_buffer_size, uint16_t tx_buffer_size, bool inverted, uint8_t rxfifo_full_thrhd)
+bool _testUartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint32_t rx_buffer_size, uint32_t tx_buffer_size, bool inverted, uint8_t rxfifo_full_thrhd)
 {
     if(uart_nr >= SOC_UART_NUM) {
         return false;  // no new driver has to be installed
@@ -320,7 +320,7 @@ bool _testUartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t
     }
 }
 
-uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint16_t rx_buffer_size, uint16_t tx_buffer_size, bool inverted, uint8_t rxfifo_full_thrhd)
+uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint32_t rx_buffer_size, uint32_t tx_buffer_size, bool inverted, uint8_t rxfifo_full_thrhd)
 {
     if(uart_nr >= SOC_UART_NUM) {
         log_e("UART number is invalid, please use number from 0 to %u", SOC_UART_NUM - 1);