Added support for the MKR1010

Added support for the Arduino MKR1010

Author: MxWinters

Adafruit_MQTT.cpp

@@ -21,7 +21,7 @@
 // SOFTWARE.
 #include "Adafruit_MQTT.h"
 
-#if defined(ARDUINO_SAMD_ZERO) || defined(ARDUINO_SAMD_MKR1000) ||             \
+#if defined(ARDUINO_SAMD_ZERO) || defined(ARDUINO_SAMD_MKR1000) || defined(ARDUINO_SAMD_MKR1010) ||             \
     defined(ARDUINO_ARCH_SAMD)
 static char *dtostrf(double val, signed char width, unsigned char prec,
                      char *sout) {