perf tools intel-pt-decoder: Update insn.h from the kernel sources

perf tools intel-pt-decoder: Update insn.h from the kernel sources

To pick up the changes in:

  ee6a7354a362 ("kprobes/x86: Prohibit probing on exception masking instructions")

That doesn't entail changes in tooling, but silences this perf build
warning:

  Warning: Intel PT: x86 instruction decoder header at 'tools/perf/util/intel-pt-decoder/insn.h' differs from latest version at 'arch/x86/include/asm/insn.h'

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-o3wfwjnyh7r8l0gi9q3y9f44@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>