boards/arduino-zero: adapted periph_conf

- changed names of pad selection macros according to
  the CPU changes

boards/arduino-zero/include/periph_conf.h

@@ -106,9 +106,22 @@ extern "C" {
  * @{
  */
 static const uart_conf_t uart_config[] = {
-    /* device, RX pin, TX pin, mux, RX pad, TX pad */
-    {&SERCOM5->USART, GPIO_PIN(PB,23), GPIO_PIN(PB,22), GPIO_MUX_D, SERCOM_RX_PAD_3, UART_TX_PAD_2},
-    {&SERCOM0->USART, GPIO_PIN(PA,11), GPIO_PIN(PA,10), GPIO_MUX_C, SERCOM_RX_PAD_3, UART_TX_PAD_2},
+    {
+        .dev    = &SERCOM5->USART,
+        .rx_pin = GPIO_PIN(PB,23),
+        .tx_pin = GPIO_PIN(PB,22),
+        .mux    = GPIO_MUX_D,
+        .rx_pad = UART_PAD_RX_3,
+        .tx_pad = UART_PAD_TX_2
+    },
+    {
+        .dev    = &SERCOM0->USART,
+        .rx_pin = GPIO_PIN(PA,11),
+        .tx_pin = GPIO_PIN(PA,10),
+        .mux    = GPIO_MUX_C,
+        .rx_pad = UART_PAD_RX_3,
+        .tx_pad = UART_PAD_TX_2
+    }
 };
 
 /* interrupt function name mapping */
@@ -182,10 +195,10 @@ static const pwm_conf_t pwm_config[] = {
 #define SPI_0_SCLK_MUX     GPIO_MUX_D
 #define SPI_0_MISO         GPIO_PIN(PA, 12)
 #define SPI_0_MISO_MUX     GPIO_MUX_D
-#define SPI_0_MISO_PAD     SERCOM_RX_PAD_0
+#define SPI_0_MISO_PAD     SPI_PAD_MISO_0
 #define SPI_0_MOSI         GPIO_PIN(PB, 10)
 #define SPI_0_MOSI_MUX     GPIO_MUX_D
-#define SPI_0_MOSI_PAD     SPI_PAD_2_SCK_3
+#define SPI_0_MOSI_PAD     SPI_PAD_MOSI_2_SCK_3
 
 /** @} */