en-US: Use ATM consistency on map window

Author: ZeeMaji

data/language/en-US.txt

@@ -202,7 +202,7 @@ STR_3102    :Re-paint colored scenery on landscape
 STR_3122    :{WINDOW_COLOUR_2}Favorite ride of: {BLACK}{COMMA32} guest
 STR_3123    :{WINDOW_COLOUR_2}Favorite ride of: {BLACK}{COMMA32} guests
 
-STR_3372    :{BLACK}= A.T.M.
+STR_3372    :{BLACK}= ATM
 STR_3373    :{BLACK}= Restroom
 
 # Strings added by OpenRCT2. Only add strings that differ from UK English!