Belatedly add a note about the i386 loader defaulting to the serial rate set by the previous boot stage, if the console is already set to the comconsole.
Belatedly add a note about the i386 loader defaulting to the serial
rate set by the previous boot stage, if the console is already set
to the comconsole.

Approved by:    re (scottl)

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