Fix reset vector catch clearing on LPC1768
Fix reset vector catch clearing on LPC1768

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