This modifies the `Makefile.nerf` to create files based on the
$(BOARD) variable, which is necessary as we start to support
multiple mainboards.
The config files must define five variables, all in bytes:
* `NERF_SIZE` - for the EFI firmware volume that contains Linux
* `PEI_SIZE` - size of the PEI image in the vendor ROM
* `PEI_OFFSET` - offset of the PEI image in the vendor ROM
* `ME_SIZE` - size of the ME image in the vendor ROM, or 0 if
there is no ME image to be extracted.
* `ME_OFFSET` - offset of the ME image in the vendor ROM
The `ifd.bin` must be created and can be checked in.
The default ROM input file is `blobs/$(BOARD)/$(BOARD).rom`,
and it *must not* be checked in.
This links in the AcpiTableDxe and AcpiPlatform executables from
the edk2 build tree and adds a depex dependency for the Linux
kernel on the AcpiTable being setup. The `acpi.cpio` file is
no longer included in the Linux kernel bzImage.
The `Makefile.nerf` has been re-written to generate the firmware
file system (FFS) files via rules.
TODO: figure out how to add LZMA compressed sections so that the
900k acpi tables can be compressed to about 100k.
