Yaw Damper indicator fix

[Nicotine70]

someone noticed the Yaw dumper indicator was not displaying on the AP panel, fast found a typo error in the .xml file
if you are concern about this , here is the fix : https://forums.flightsimulator.com/t/black-square-steam-gauge-overhaul-king-air-350i/548884/1776
it' s just a little typo error not a big issue