changed build variables as per advice

Author: Daniel Pollard

ports/atmel-samd/boards/pyruler/mpconfigboard.mk

@@ -9,10 +9,10 @@ CHIP_FAMILY = samd21
 INTERNAL_FLASH_FILESYSTEM = 1
 LONGINT_IMPL = NONE
 CIRCUITPY_FULL_BUILD = 0
-
+CIRCUITPY_COUNTIO = 0
 SUPEROPT_GC = 0
 
 CFLAGS_BOARD = --param max-inline-insns-auto=15
 ifeq ($(TRANSLATION), zh_Latn_pinyin)
 CFLAGS_INLINE_LIMIT = 35
-endif
+endif