On broadwell, the hardcoded 16MB flash caused the progress bar to be at 50%
when it finishes flashing.
This reads the total flash size from the flashrom output.
Fixes https://code.puri.sm/kakaroto/coreboot-files/issues/7

This fixes the overheating shutdowns issue we had by setting the TCC
activation to 95C.

Fallback on checking the filename to find instead of throwing an error
if the hash doesn't match.

unrar could be unrar-free which doesn't support RAR v5 formats.
In that case, unrar-nonfree is required (7z and unar fail with the
file for some reason, even though they are supposed to support RAR v5).
This will download and compile unrar from source and use it to extract
the ME 11 repository rar file.

If you have HAP bit set in your descriptor, then extracting the descriptor
would yield the wrong SHA. This tests for it and fixes it.

I think hwseq isn't selected by default anymore with the updated and
disabled ME. Better force it just to be safe.

The ME for SKL platform is updated to 11.0.18.1002, taken from the ME 11
repository pack r48. and patched to configure it to our platform's settings
The descriptor is also modified to shrink the ME region to 2MB.
The neutralization is updated to use the newer branch and enable the HAP bit
and removing the neutralization as an option, and making it mandatory now.

The descriptor shrinks the ME region from 10MB to 2MB, and the ME11 patch
will configure the ME 11.0.18.1002 image to the proper PCIe/CLK configurations
to allow the Wifi module to work

This caused issues with hash being wrong when seabios git received
new commits.
Using a specific hash is better, and needed as well since stable version
doesn't support NVMe.

Adding a script to build coreboot, it's a work in progress. The resulting
binary seems to work but it doesn't create a reproducible build.
Also, it depends on running on an actual librem machine so it can grab
the binary blobs from it.