Provide vbios builds for T530 W530 T430

[redneuromancer]

Request to please provide builds with vbios for T530, W530, and T430.

This will give users the option to use the blobs if/when needed, close #279 (Windows compatibility), and provide parity with the remaining models.

In the case of W530, I believe the correct dGPU blob is needed to boot in discrete or hybrid mode, or even to have any kind of display out. Quoting Heads documentation:

Initialization of the dGPU is necessary in order to use an external monitor whether through the in-build VGA or mini-DisplayPort or via the dock. In order to build this the relevant script in the blobs directory must be run (or self-pulled roms placed in that directory) and after building the rom, the nvramtool must be run on the 12MB rom to change the default graphics mode away from integrated-only graphics (see README_vbios in the blobs directory).

relevant Heads PR from 2021: Add support for t530 and w530 dGPU

tlaurion also mentioned this in a different issue.

This would maybe fully solve #293

I think T530-dgpu and T430-dgpu could be left for another time as they are less desirable and no one reported an issue yet. If W530 is too much work, T530 and T430 would be appreciated regardless.

Thank you for your work!

[redneuromancer]

Since I got no reply here, I made PR myself. Since I was getting no feedback there, I made a fork that includes the missing functionality:

Skulls-V (fork)

[maxdotworks]

Did you experience graphic scramble after the GRUB screen? Is that why you added these blobs back?
Hoping to implement a fix for a T430 here. Thank you!