Some cleanup and a fix for an assumed chip bug: - Do not malloc SCRIPTS memory for those parts of the microcode that   are to be loaded into the on-chip SRAM of the 53c825a or 875 ... - Modify ncr_chip_lookup to make adding new entries easier. - Disable use of on-chip SRAM for the 53c825 rev 0x10 to 0x12, since   there seems to be a problem with rev 0x11, while 0x13 is known to   work. (Tested by Chuck Robey <chuckr@glue.umd.edu>).
Some cleanup and a fix for an assumed chip bug:
- Do not malloc SCRIPTS memory for those parts of the microcode that
  are to be loaded into the on-chip SRAM of the 53c825a or 875 ...
- Modify ncr_chip_lookup to make adding new entries easier.
- Disable use of on-chip SRAM for the 53c825 rev 0x10 to 0x12, since
  there seems to be a problem with rev 0x11, while 0x13 is known to
  work. (Tested by Chuck Robey <chuckr@glue.umd.edu>).

This code will be merged into 2.2-stable after a few more days of
testing in -current.

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