Simplify AcpiOsReadPort() and AcpiOsWritePort() with iodev_read_*() and iodev_write_*().  This removes unnecessary uses of temporary macros as well. There is no functional change after this (verified with md5(1) on amd64).
Simplify AcpiOsReadPort() and AcpiOsWritePort() with iodev_read_*() and
iodev_write_*().  This removes unnecessary uses of temporary macros as well.
There is no functional change after this (verified with md5(1) on amd64).

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