CMake: Move EB Control in

Just simplifies the call site.

Author: ax3l

src/CMakeLists.txt

@@ -2,9 +2,7 @@
 add_subdirectory(AmrCore)
 add_subdirectory(Base)
 #add_subdirectory(Boundary)
-if (AMReX_EB)
-    add_subdirectory(EB)
-endif()
+add_subdirectory(EB)
 #add_subdirectory(Extern)
 #add_subdirectory(LinearSolvers)
 add_subdirectory(Particle)

src/EB/CMakeLists.txt

@@ -1,4 +1,7 @@
 foreach(D IN LISTS AMReX_SPACEDIM)
+    if (NOT AMReX_EB)
+        return()
+    endif()
     if (D EQUAL 1)
         return()
     endif()