Revert AccessWidth/BitOffset support for AcpiHwWrite() and AcpiHwRead() for
now. The following upstream commits are reverted from hwregs.c:

https://github.com/acpica/acpica/commit/96ece05
https://github.com/acpica/acpica/commit/3d8583a
https://github.com/acpica/acpica/commit/48eea5e
https://github.com/acpica/acpica/commit/0a212c3
https://github.com/acpica/acpica/commit/41f6aef
https://github.com/acpica/acpica/commit/26434b9
https://github.com/acpica/acpica/commit/c23034a
https://github.com/acpica/acpica/commit/c49a751

Note this commit will be reverted when the upstream fixes the code properly.