perf annotate: Pass "-l" option to objdump conditionally

The "-l" option is to print line numbers in the objdump output.  perf
annotate TUI only can show the line numbers later but it causes big slow
downs for the kernel binary.

Similarly, showing source code also takes a long time and it already has
an option to control it.

  $ time objdump ... -d -S -C vmlinux > /dev/null
  real	0m3.474s
  user	0m3.047s
  sys	0m0.428s

  $ time objdump ... -d -l -C vmlinux > /dev/null
  real	0m1.796s
  user	0m1.459s
  sys	0m0.338s

  $ time objdump ... -d -C vmlinux > /dev/null
  real	0m0.051s
  user	0m0.036s
  sys	0m0.016s

As it's not needed for data type profiling, let's make it conditional so
that it can skip the unnecessary work.

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Masami Hiramatsu (Google) <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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