Add more earthwalls for easier navigation on laptop keyboards.

git-svn-id: svn://svn.code.sf.net/p/crossfire/code/maps/trunk@14723 282e977c-c81d-0410-88c4-b93c2d0d6712

wolfsburg/magara/cellar_1

@@ -2497,7 +2497,7 @@ arch small_stones
 x 11
 y 6
 end
-arch bwall_0
+arch earthwall
 x 11
 y 6
 end
@@ -2513,7 +2513,7 @@ arch small_stones
 x 11
 y 8
 end
-arch bwall_0
+arch earthwall
 x 11
 y 8
 end
@@ -4193,7 +4193,7 @@ arch small_stones
 x 18
 y 6
 end
-arch bwall_0
+arch earthwall
 x 18
 y 6
 end
@@ -4705,7 +4705,7 @@ arch small_stones
 x 20
 y 6
 end
-arch bwall_0
+arch earthwall
 x 20
 y 6
 end