Small changes for allowing XMC boards

Author: OlafFilies

src/Servo.h

@@ -75,8 +75,10 @@
 #include "mbed/ServoTimers.h"
 #elif defined(ARDUINO_ARCH_RENESAS)
 #include "renesas/ServoTimers.h"
+#elif defined(ARDUINO_ARCH_XMC)
+#include "xmc/ServoTimers.h"
 #else
-#error "This library only supports boards with an AVR, SAM, SAMD, NRF52 or STM32F4 processor."
+#error "This library only supports boards with an AVR, SAM, SAMD, NRF52, STM32F4, Renesas or XMC processor."
 #endif
 
 #define Servo_VERSION           2     // software version of this library
@@ -91,7 +93,7 @@
 
 #define INVALID_SERVO         255     // flag indicating an invalid servo index
 
-#if !defined(ARDUINO_ARCH_STM32F4)
+#if !defined(ARDUINO_ARCH_STM32F4) && !defined(ARDUINO_ARCH_XMC)
 
 typedef struct  {
   uint8_t nbr        :6 ;             // a pin number from 0 to 63