Add SMP/SMT support for sysost driver.

[周琰杰 (Zhou Yanjie)]

v1->v2:
1.split changes about x1000 and array name to separate patch.
2.Fix bug in ingenic_ost_global_timer_recalc_rate().
3.Add a backpointer to the ingenic_ost structure.
4.Remove unnecessary spinlock.
5.Use "ret = ost->irq" instead "ret = -EINVAL".
6.Use "%d" instead "%x" in pr_crit().

周琰杰 (Zhou Yanjie) (2):
  clocksource: Ingenic: Rename unreasonable array names.
  clocksource: Ingenic: Add SMP/SMT support for sysost driver.

 drivers/clocksource/ingenic-sysost.c | 323 ++++++++++++++++++++++++++---------
 1 file changed, 240 insertions(+), 83 deletions(-)

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2.7.4