ARM: events: increase minimum cycle period to 100k
On ARM, we intentionally leave the minimum event counters low since
the performance profile of the cores can vary dramatically between CPUs
and their implementations.
However, since the default event is CPU_CYCLES, it's best to err on the
side of caution and raise the limit to something more realistic so we
don't lock-up on the unsuspecting user (as opposed to somebody passing
an explicit event period).
This patch raises the CPU_CYCLES minimum event count to 100k on ARM.