objtool-core-2022-10-07

 - Remove the "ANNOTATE_NOENDBR on ENDBR" warning: it's not
   really useful and only found a non-bug false positive so far.

 - Properly decode LOOP/LOOPE/LOOPNE, which were missing from
   the x86 decoder. Because these instructions are rather
   ineffective, they never showed up in compiler output,
   but they are simple enough to support, so add them for
   completeness.

 - A bit more cross-arch preparatory work.

Signed-off-by: Ingo Molnar <mingo@kernel.org>