Revert "ACPI: CPPC: Use access_width over bit_width for system memory accesses"

Revert "ACPI: CPPC: Use access_width over bit_width for system memory accesses"

This reverts commit 4949affd5288b867cdf115f5b08d6166b2027f87 which is
commit 2f4a4d63a193be6fd530d180bb13c3592052904c upstream.

It breaks AmpereOne systems and should not have been added to the stable
tree just yet.

Link: https://lore.kernel.org/r/97d25ef7-dee9-4cc5-842a-273f565869b3@linux.microsoft.com
Reported-by: Easwar Hariharan <eahariha@linux.microsoft.com>
Cc: Jarred White <jarredwhite@linux.microsoft.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>