ACPI / PPTT: Find PPTT cache level by ID

maillist inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8T2RT

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git/log/?h=mpam/snapshot/v6.7-rc2



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The MPAM table identifies caches by id, but the driver also wants to know
the cache level, without having to wait for whichever core has that cache
to come online.

Add a helper that walks every possible cache, until it finds the one
identified by id, then return the level.

Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Zeng Heng <zengheng4@huawei.com>