perf beauty: Update copy of linux/socket.h with the kernel sources

To pick the changes in:

b1e904999542ad67 ("net: pass const to msg_data_left()")

That don't result in any changes in the tables generated from that
header.

This silences this perf build warning:

Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h

Please see tools/include/uapi/README for details.

Cc: Adrian Hunter <[e-mail]>
Cc: Breno Leitao <[e-mail]>
Cc: Ian Rogers <[e-mail]>
Cc: Jakub Kicinski <[e-mail]>
Cc: James Clark <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Kan Liang <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Link: https://lore.kernel.org/r/aErrK24XLUILFH_P@x1
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/trace/beauty/include/linux/socket.h

···
 	return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg);
 }
 
-static inline size_t msg_data_left(struct msghdr *msg)
+static inline size_t msg_data_left(const struct msghdr *msg)
 {
 	return iov_iter_count(&msg->msg_iter);
 }