perf beauty: Add a string table generator for x86's 'arch_prctl' codes

  $ tools/perf/trace/beauty/x86_arch_prctl.sh
  #define x86_arch_prctl_codes_1_offset 0x1001
  static const char *x86_arch_prctl_codes_1[] = {
	[0x1001 - 0x1001]= "SET_GS",
	[0x1002 - 0x1001]= "SET_FS",
	[0x1003 - 0x1001]= "GET_FS",
	[0x1004 - 0x1001]= "GET_GS",
	[0x1011 - 0x1001]= "GET_CPUID",
	[0x1012 - 0x1001]= "SET_CPUID",
  };

  #define x86_arch_prctl_codes_2_offset 0x2001
  static const char *x86_arch_prctl_codes_2[] = {
	[0x2001 - 0x2001]= "MAP_VDSO_X32",
	[0x2002 - 0x2001]= "MAP_VDSO_32",
	[0x2003 - 0x2001]= "MAP_VDSO_64",
  };
  $

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-w0fux1psivphhx6rve8kn3vq@git.kernel.org


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