perf/urgent fixes:

- Only print NMI watchdog hint in 'perf stat' when it is enabled (Andi Kleen)

- Fix sys_mmap/sys_old_mmap shandling in s390 in 'perf trace' (Jiri Olsa)

- Disable breakpoint signal tests in powerpc, that lacks the perf kernel
  glue to set breakpoint events and makes 'perf test' always fail (Jiri Olsa)

- Fix 'perf annotate' for branch instruction with multiple operands (Kim Phillips)

- Add missing powerpc triplet when disassembling with 'objdump' in 'perf
  annotate' (Kim Phillips)

- Do not trow away partial unwound stacks when using libdw, making
  callchains produced with it similar to those produced when linked with
  the other DWARF unwind library supported in perf, libunwind (Milian Wolff)

- Fixes to properly handle kernel modules when processing build-id meta
  events (Namhyung Kim)

- Fix handling of compressed modules in the build-id cache (Namhyung Kim)

- Fix 'perf annotate' failure when filename has special chars (Ravi Bangoria)

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