Update mgm210_custom_board configuration (#12)

Author: Adminiuga

hardware/board/config/brd_mgm210_expansion/sl_iostream_usart_vcom_config.h

@@ -92,7 +92,7 @@
 #define SL_IOSTREAM_USART_VCOM_TX_PIN            0
 
 // USART0 RX on PA1
-#define SL_IOSTREAM_USART_VCOM_RX_PORT           gpioPortA
+#define SL_IOSTREAM_USART_VCOM_RX_PORT           gpioPortC
 #define SL_IOSTREAM_USART_VCOM_RX_PIN            4
 
 // [USART_SL_IOSTREAM_USART_VCOM]$

hardware/board/config/brd_mgm210_expansion/sl_simple_button_btn0_config.h

@@ -48,7 +48,7 @@
 
 // <gpio> SL_SIMPLE_BUTTON_BTN0
 // $[GPIO_SL_SIMPLE_BUTTON_BTN0]
-#define SL_SIMPLE_BUTTON_BTN0_PORT               gpioPortC
+#define SL_SIMPLE_BUTTON_BTN0_PORT               gpioPortA
 #define SL_SIMPLE_BUTTON_BTN0_PIN                4
 
 // [GPIO_SL_SIMPLE_BUTTON_BTN0]$