LPC5500: fix missing LOG in family.
LPC5500: fix missing LOG in family.

mbedmicro/pyOCD,flit/pyOCD,pyocd/pyOCD,mesheven/pyOCD,mesheven/pyOCD,mbedmicro/pyOCD,mbedmicro/pyOCD,mesheven/pyOCD,flit/pyOCD,pyocd/pyOCD