SLES10 Fixes (part 7)

SLES10 Fixes (part 7)
- Initial SLES testing uncovered a long standing bug in the debug
  tracing.  The tcd_for_each() macro expected a NULL to terminate
  the trace_data[i] array but this was only ever true due to luck.
  All trace_data[] iterators are now properly capped by TCD_TYPE_MAX.
- SPLAT_MAJOR 229 conflicted with a 'hvc' device on my SLES system.
  Since this was always an arbitrary choice I picked something else.
- The HAVE_PGDAT_LIST case should set pgdat_list_addr to the value stored
  at the address of the memory location returned by kallsyms_lookup_name().