fixes from @gamblor21 comments

Author: todbot

ports/raspberrypi/boards/mtm_computer/mpconfigboard.mk

@@ -1,4 +1,4 @@
-USB_VID = 0x239A
+USB_VID = 0x2E8A
 USB_PID = 0x10C1
 USB_PRODUCT = "Workshop Computer"
 USB_MANUFACTURER = "Music Thing Modular"
@@ -8,6 +8,7 @@ CHIP_FAMILY = rp2
 
 EXTERNAL_FLASH_DEVICES = "W25Q16JVxQ"
 
+CIRCUITPY_AUDIOEFFECTS = 1
 CIRCUITPY_AUDIODELAYS = 1
 CIRCUITPY_IMAGECAPTURE = 0
 CIRCUITPY_PICODVI = 0