seeed_xiao_esp32c3 flash mode change to dio

I was having trouble flashing CircuitPython to the Seeed xiao
esp32c3 using the make flash option. With the help of DAN and
Neradoc I was able to perform a manual flash and use the make
flash option to flash an Adafruit_qtpy_esp32c3 bin but when I
went back and attempted to use make flash on the seeed bin it didn't
work. Comparing the builds, the flash mode was different and after
making this change the seeed build now flashes properly using make
flash.

Author: RetiredWizard

ports/espressif/boards/seeed_xiao_esp32c3/mpconfigboard.mk

@@ -3,6 +3,6 @@ CIRCUITPY_CREATION_ID = 0x00C30001
 
 IDF_TARGET = esp32c3
 
-CIRCUITPY_ESP_FLASH_MODE = qio
+CIRCUITPY_ESP_FLASH_MODE = dio
 CIRCUITPY_ESP_FLASH_FREQ = 80m
 CIRCUITPY_ESP_FLASH_SIZE = 4MB