[U-Boot] x86: acpi: Disabling SoC functions defined in ASL on a per board basis

Does anyone have any ideas on how we might go about disabling functions defined in arch/x86/include/asm/arch-*/acpi on a per board basis? With DT it's trivial to define all of the functions available on an SoC and default them to disabled in the .dtsi, then simply mark them as enabled in the board .dts if the board uses them. I need to disable the internal UART definition for the baytrail board I'm adding since if it's included the off chip UART gets killed when Linux does it's acpi_bus_scan.

Regards, George McCollister