[XS] Change in coreboot[main]: soc/mediatek/mt8189: Replace SPDX identifiers to GPL-2.0-only OR MIT

[Yu-Ping Wu (Code Review)]

Attention is currently required from: Felix Singer, Hung-Te Lin, Vince Liu.

Yu-Ping Wu has posted comments on this change by Vince Liu. ( https://review.coreboot.org/c/coreboot/+/85723?usp=email )

Change subject: soc/mediatek/mt8189: Replace SPDX identifiers to GPL-2.0-only OR MIT
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Patch Set 1: Code-Review+2

(1 comment)

File src/soc/mediatek/mt8189/timer.c:

https://review.coreboot.org/c/coreboot/+/85723/comment/4fdf64f2_9e857c3a?usp... :
PS1, Line 1: OR MIT
> I think that is okay. Here is the example from [Linux kernel](https://docs.kernel. […]

The license compatibility doesn't matter here. The license owners are allowed to re-license the file to whatever license (if that conforms to coreboot's requirement). In this case, this file was created by Vince Liu and never touched by other people, so Vince Liu can definitely re-license it.

Also see a previous example of re-licensing old files: CB:66625.