Revert "command_parser: fix typo"

Keep PR to one issue at a time!

This reverts commit 34f09030e5.

firmware/src/command_parser.rs

@@ -108,7 +108,7 @@ impl Command {
                                 )),
                                 Disable => Ok(Command::Channel(
                                     channel as u8,
-                                    ChannelCommand::Disable
+                                    ChannelCommand::Enable
                                 )),
                             ]
                         }