perf/x86/amd/uncore: Use dynamic events array

mainline inclusion
from mainline-v6.0-rc1
commit 39621c58
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5YLE2


CVE: NA

--------------------------------

If AMD Performance Monitoring Version 2 (PerfMonV2) is
supported, the number of available counters for a given
uncore PMU may not be fixed across families and models
and has to be determined at runtime.

The per-cpu uncore PMU data currently uses a fixed-sized
array for event information. Make it dynamic based on the
number of available counters.

Signed-off-by: Sandipan Das <sandipan.das@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/21eea0cb6de9d14f78d52d1d62637ae02bc900f5.1652954372.git.sandipan.das@amd.com


Signed-off-by: Xie Haocheng <haocheng.xie@amd.com>