Move displacement map chunk

... as in #11271.

examples/webgl_gpgpu_water.html

@@ -182,9 +182,9 @@
 				vec3 transformed = vec3( position.x, position.y, heightValue );
 				//<begin_vertex>
 
-				#include <displacementmap_vertex>
 				#include <morphtarget_vertex>
 				#include <skinning_vertex>
+				#include <displacementmap_vertex>
 				#include <project_vertex>
 				#include <logdepthbuf_vertex>
 				#include <clipping_planes_vertex>