ACPI: bus: Define and use symbols for device and class name lengths

It is better to define symbols for the maximum ACPI device name length
and the maximum ACPI class name length instead of using raw numbers in
typedef statements.

Signed-off-by: Muhammad Qasim Abdul Majeed <qasim.majeed20@gmail.com>
Link: https://patch.msgid.link/20240804123313.16211-6-qasim.majeed20@gmail.com


[ rjw: Subject edits, added a changelog, dropped unrelated change ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>