Style and minor changes: - Merge esp_sbus.c rev. 1.31 from NetBSD: nuke trailing whitespace.   Rev. 1.28 and 1.30 were already merged, 1.29 is not relevant for FreeBSD. - Remove unused headers. - Use BUS_PROBE_DEFAULT. - Use __func__ instead of hardcoded function names in error messages. - Correct some comments. - Correct some function declarations to match their prototypes. - Some style(9) fixes (don't use function calls in initializers; indentation). - Zero the allocated structs to avoid problems with uninitialized members. - Remove the ifdef'ed out SBus interrupt priority code and the hook for   ncr53c9x_reset(), remove the unused SBus interrupt priority member from   esp_softc. On FreeBSD setting the SBus interrupt priority is entirely done   in sbus(4) and the reset function isn't even really used in NetBSD. - s,dma,DMA, in comments. - Make the code fit in 80 columns.
Style and minor changes:
- Merge esp_sbus.c rev. 1.31 from NetBSD: nuke trailing whitespace.
  Rev. 1.28 and 1.30 were already merged, 1.29 is not relevant for FreeBSD.
- Remove unused headers.
- Use BUS_PROBE_DEFAULT.
- Use __func__ instead of hardcoded function names in error messages.
- Correct some comments.
- Correct some function declarations to match their prototypes.
- Some style(9) fixes (don't use function calls in initializers; indentation).
- Zero the allocated structs to avoid problems with uninitialized members.
- Remove the ifdef'ed out SBus interrupt priority code and the hook for
  ncr53c9x_reset(), remove the unused SBus interrupt priority member from
  esp_softc. On FreeBSD setting the SBus interrupt priority is entirely done
  in sbus(4) and the reset function isn't even really used in NetBSD.
- s,dma,DMA, in comments.
- Make the code fit in 80 columns.

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