Fixed SWD_ERROR_ACKMISMATCH description, added SWD_ERROR_UNHANDLED SWD_ERROR_MAXRETRY definitions.
Fixed SWD_ERROR_ACKMISMATCH description, added SWD_ERROR_UNHANDLED SWD_ERROR_MAXRETRY definitions.

shangdawei/LibSWD,cedar-renjun/LibSWD,ongjohn/LibSWD,ongjohn/LibSWD,shangdawei/LibSWD,ongjohn/LibSWD,shangdawei/LibSWD,cedar-renjun/LibSWD,cedar-renjun/LibSWD