[coreboot] Cr50 is not the only Google security chip

[Vadim Bendebury]

Hello fellow Coreboot enthusiasts,

I am not sure if I am the only one annoyed/confused when I see coreboot
messages like "Error reading from Cr50" or "Did not recognize Cr50 version
format", etc. while the device in fact is using a different GSC (Google
Security Chip).

Before I go for it - would there be objections to changing the source code
(including path and file name changes) from Cr50 to GSC where appropiate?

TIA,
-vb