Clean up the check for invalid X_DSDT and X_FACS portions of the FADT. Add fadt_revision for telling if the FADT has correct 64 bit addresses, separate from whether the XSDT has legal 64 bit addresses.
Clean up the check for invalid X_DSDT and X_FACS portions of the FADT.
Add fadt_revision for telling if the FADT has correct 64 bit addresses,
separate from whether the XSDT has legal 64 bit addresses.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase