Connect arduino shield pin 9 to correct PWM channel

Previously both pin 6 and 9 were connected to PWM channel 2

Author: GregAC

data/top_config.toml

@@ -341,7 +341,7 @@ block_ios = [{block = "gpio", instance = 1, io = "ios", io_index = 8}]
 name = "ah_tmpio9"
 block_ios = [
   {block = "gpio", instance = 1, io = "ios", io_index = 9},
-  {block = "pwm", instance = 0, io = "out", io_index = 2},
+  {block = "pwm", instance = 0, io = "out", io_index = 3},
 ]
 
 [[pins]]