[PATCH v2 5/6] Refactor hp-timing rtld usage

[Wilco Dijkstra]

Hi Adhemerval,

> Changes from previous version:
>
>   - Add rtld_timer_start, rtld_timer_stop, and rtld_timer_accum to simplify
>    the profiling timer calculation.  It allows remove the declaration of
>     some temporary variables.
>
>   - Simplify print_statistics and refactor HP_TIMING_PRINT to remove 'cycle'
>     print.

LGTM. It can likely be cleaned up further to remove the remaining #ifdefs but that
can be done as a followup.

Wilco