intel: Add the Gen6+ version of MI_REPORT_PERF_COUNT to intel_decode.c.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ben Widawsky <benjamin.widawsky@intel.com>
intel: Add MI_LOAD_REGISTER_MEM to intel_decode.c.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ben Widawsky <benjamin.widawsky@intel.com>