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

To pick the changes in:

99ce45d5e7dbde39 ("mctp: Implement extended addressing")
55c42fa7fa331f98 ("mptcp: add MPTCP_INFO getsockopt")

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

A table generator for setsockopt is needed, probably will be done in the
5.16 cycle.

This silences this perf build warning:

Warning: Kernel ABI header at 'tools/perf/trace/beauty/include/linux/socket.h' differs from latest version at 'include/linux/socket.h'
diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h

Cc: David S. Miller <[e-mail]>
Cc: Florian Westphal <[e-mail]>
Cc: Jeremy Kerr <[e-mail]>
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

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

···
 #define SOL_KCM		281
 #define SOL_TLS		282
 #define SOL_XDP		283
+#define SOL_MPTCP	284
+#define SOL_MCTP	285
 
 /* IPX options */
 #define IPX_TYPE	1