Fix naming errors

Author: petergrossmann21

lambdalib/ramlib/__init__.py

@@ -4,7 +4,7 @@
 from .la_syncfifo.la_syncfifo import Syncfifo
 from .la_dpram.la_dpram import Dpram
 from .la_spram.la_spram import Spram
-from .la_spram.la_spram import Tdpram
+from .la_tdpram.la_tdpram import Tdpram
 
 __all__ = ['Asyncfifo',
            'Syncfifo',