perf probe: Introduce lines walker interface

Introduce die_walk_lines() for walking on the line list of given die, and use
it in line_range finder and probe point finder.

Cc: [email protected]
Cc: Franck Bui-Huu <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Srikar Dronamraju <[email protected]>
Cc: Steven Rostedt <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Masami Hiramatsu <[email protected]>
[ committer note: s/%ld/%zd/ for a size_t nlines var that broke f14 x86 build]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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