[PATCH v4 3/4] perf tools: Fix lexical definition of event name

[nakamura.shun at fujitsu.com]

Hi, John

I have applied this patch and confirmed that the event can be specified correctly.
Event names are defined in the A64FX specification.
I want to deal with it at that time if there is a problem.

So I would like to resend the v5 patch and wait for advice from others.

Best Regards
Shunsuke