zephyrCommon: Add Print::write(uint8_t*, size_t) default implementation

When compile with enabling CONFIG_DEBUG option,
the Print::write virtual function failed to link.

This implementation is usually not used.
Because the override implementation that implements
by the subclass will be used.

Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@fujitsu.com>

Author: soburi

cores/arduino/zephyrCommon.cpp

@@ -49,3 +49,12 @@ unsigned long micros(void) {
 
 unsigned long millis(void) { return k_uptime_get_32(); }
 
+/* default implementation */
+size_t arduino::Print::write(const uint8_t *buffer, size_t size)
+{
+  size_t i;
+  for (i=0; i<size && write(buffer[i]); i++) {
+  }
+
+  return i;
+}