Merge pull request #8181 from jepler/update-metro-rp2040-flash

update metro rp2040 to work with 16MB flash

Author: dhalbert

ports/raspberrypi/boards/adafruit_metro_rp2040/mpconfigboard.mk

@@ -6,4 +6,4 @@ USB_MANUFACTURER = "Adafruit"
 CHIP_VARIANT = RP2040
 CHIP_FAMILY = rp2
 
-EXTERNAL_FLASH_DEVICES = "GD25Q64C,W25Q64JVxQ"
+EXTERNAL_FLASH_DEVICES = "GD25Q64C,W25Q64JVxQ,W25Q128JV"