Made generic external module support

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

CMakeLists.txt

@@ -334,7 +334,6 @@ foreach(module ${config_module_list})
 	if(external_module)
 		STRING(REGEX REPLACE "//" "/" EXT_MODULE ${module})
 		STRING(REGEX REPLACE "/" "__" EXT_MODULE_PREFIX ${EXT_MODULE})
-		get_filename_component(EXT_MODULE ${module} NAME)
 		add_subdirectory(${module} ${CMAKE_BINARY_DIR}/${EXT_MODULE_PREFIX})
 	else()
 		add_subdirectory(src/${module})