Add missing dependency on core_physics_mmm in core_atmosphere/physics/Makefile

In src/core_atmosphere/physics/Makefile, the core_physics_wrf build target
should depend on core_physics_mmm, since compilation of modules in the
physics_wrf directory depends on successful compilation of modules in the
physics_mmm directory.

Author: mgduda

src/core_atmosphere/physics/Makefile

@@ -52,7 +52,7 @@ lookup_tables:
 core_physics_mmm: core_physics_init
 	(cd physics_mmm; $(MAKE) all)
 
-core_physics_wrf: core_physics_init
+core_physics_wrf: core_physics_init core_physics_mmm
 	(cd physics_wrf; $(MAKE) all COREDEF="$(COREDEF)")
 
 core_physics_init: $(OBJS_init)