tools headers UAPI: Sync the linux/const.h with the kernel headers

Picking the changes from:

  31088f6f ("uapi/linux/const.h: prefer ISO-friendly __typeof__")

Silencing these perf build warnings::

  Warning: Kernel ABI header at 'tools/include/uapi/linux/const.h' differs from latest version at 'include/uapi/linux/const.h'
  diff -u tools/include/uapi/linux/const.h include/uapi/linux/const.h

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: loongson-kernel@lists.loongnix.cn
Link: https://lore.kernel.org/r/33e963df304394f932d9108a1b0bb327f23a4eca.1683712945.git.siyanteng@loongson.cn


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>