Properly implement kdb_cpu_{set|clear}_singlestep to allow DDB to continue from breakpoints.
Properly implement kdb_cpu_{set|clear}_singlestep to allow DDB to
continue from breakpoints.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase