Merge pull request #2546 from adafruit/cp_dvi_update

Updating CP PicoDVI example

Author: TheKitty

CircuitPython_DVI_Hello_World/code.py

@@ -26,15 +26,15 @@
 
 # check for DVI Feather
 if 'CKP' in dir(board):
-    fb = picodvi.Framebuffer(640, 480,
+    fb = picodvi.Framebuffer(320, 240,
         clk_dp=board.CKP, clk_dn=board.CKN,
         red_dp=board.D0P, red_dn=board.D0N,
         green_dp=board.D1P, green_dn=board.D1N,
         blue_dp=board.D2P, blue_dn=board.D2N,
         color_depth=8)
 # otherwise assume Pico
 else:
-    fb = picodvi.Framebuffer(640, 480,
+    fb = picodvi.Framebuffer(320, 240,
         clk_dp=board.GP12, clk_dn=board.GP13,
         red_dp=board.GP10, red_dn=board.GP11,
         green_dp=board.GP8, green_dn=board.GP9,