perf/x86: Factor out x86_pmu_show_pmu_cap

mainline inclusion
from mainline-v5.13-rc1
commit e11c1a7e
category: feature
feature: SRF core PMU support
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I8RWG5
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e11c1a7eb302ac8f6f47c18fa662546405a5fd83



Intel-SIG: commit e11c1a7e perf/x86: Factor out x86_pmu_show_pmu_cap
Backport as a dependency for Sierra Forrest core PMU support.

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

The PMU capabilities are different among hybrid PMUs. Perf should dump
the PMU capabilities information for each hybrid PMU.

Factor out x86_pmu_show_pmu_cap() which shows the PMU capabilities
information. The function will be reused later when registering a
dedicated hybrid PMU.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Link: https://lkml.kernel.org/r/1618237865-33448-16-git-send-email-kan.liang@linux.intel.com


Signed-off-by: Yunying Sun <yunying.sun@intel.com>