turn off audiopwmio to save flash space

Author: jepler

ports/nrf/boards/bluemicro833/mpconfigboard.mk

@@ -8,10 +8,11 @@ MCU_CHIP = nrf52833
 INTERNAL_FLASH_FILESYSTEM = 1
 
 CIRCUITPY_AUDIOBUSIO = 0
+CIRCUITPY_AUDIOPWMIO = 0
 CIRCUITPY_AUDIOMIXER = 0
 CIRCUITPY_KEYPAD = 1
 CIRCUITPY_NVM = 0
 CIRCUITPY_ONEWIREIO = 0
-CIRCUITPY_PIXELBUF  = 1
+CIRCUITPY_PIXELBUF = 1
 CIRCUITPY_PIXELMAP = 0
 CIRCUITPY_TOUCHIO = 0