Add 2 LLC load related dimension key wrappers.

They are to be displayed in the main cachelines overall output:

  ld_lclhit, ld_rmthit

They display bare numbers of LLC and remote loads for cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-ahjg0voaufefboemjuj9yefh@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>