ACPI / processor: Add helper to convert acpi_id to a phys_cpuid

hulk inclusion
category: feature
bugzilla: 28055
CVE: NA

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The PPTT parsing code only has access to an acpi_id, we need a hardware
property, preferably the corresponding phys_cpuid_t.

acpi_get_cpuid() requires us to have the acpi_handle, which would imply
we already have the acpi_device or acpi_processor structure. This call
is useful when the CPU may not have been mapped, e.g. when walking the
namespace.

The PPTT is parsed after CPUs have been discovered and mapped, add a
helper to walk the possible CPUs and test whether the acpi_processor
matches our acpi_id.

Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com>
Reviewed-By: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>