tools headers: Synchronize {linux,vdso}/bits.h with the kernel sources

To pick up the changes in this cset:

  cbdb1f16 ("vdso/bits.h: Add BIT_ULL() for the sake of consistency")

That just causes perf to rebuild, the macro included doesn't clash with
anything in tools/{perf,objtool,bpf}.

This addresses this perf build warning:

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

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