Fixed 2 non existent sprites in ZDoom_things.cfg (yay previous commit is working :) ).

Build/Configurations/Includes/ZDoom_things.cfg

@@ -258,7 +258,7 @@ zdoom
 			title = "MBF Helper dog";
 			width = 12;
 			height = 28;
-			sprite = "DOGSA2A8";
+			sprite = "internal:dog";
 		}
 	}
 
@@ -902,7 +902,7 @@ doom
 			title = "PR Lost Soul (BETA)";
 			width = "16";
 			height = "56";
-			sprite = "UNKNA0";
+			sprite = "SKULA1";
 		}
 		
 		9050