[XL] Change in coreboot[main]: soc/meidatek/mt8196: Add SPM loader

[Yu-Ping Wu (Code Review)]

Attention is currently required from: Ccong Chen, Hung-Te Lin, Jarried Lin, Yidi Lin.

Yu-Ping Wu has posted comments on this change by Ccong Chen. ( https://review.coreboot.org/c/coreboot/+/85599?usp=email )

Change subject: soc/meidatek/mt8196: Add SPM loader
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Patch Set 4:

(5 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/85599/comment/070146aa_50ebb4e0?usp... :
PS4, Line 13: 
Add

```
Also fix the SPM register definitions.
```

File src/soc/mediatek/mt8196/include/soc/spm.h:

https://review.coreboot.org/c/coreboot/+/85599/comment/8ebb2aed_1ff964df?usp... :
PS4, Line 639: 	u32 reserved2[9];
Revert these unrelated changes.

https://review.coreboot.org/c/coreboot/+/85599/comment/761ac694_dd63040f?usp... :
PS4, Line 1120: 0x2ac
Use upper case for all these hex numbers.

File src/soc/mediatek/mt8196/include/soc/spm.h:

https://review.coreboot.org/c/coreboot/+/85599/comment/01b723ef_1505497c?usp... :
PS1, Line 201: 	u8 reg_apifr_mem_apsrc_req_mask_b;
> The original definition is wrong. It's not setting for mt8196, and this code did not run before. […]

Got it.

File src/soc/mediatek/mt8196/spm.c:

https://review.coreboot.org/c/coreboot/+/85599/comment/5e863864_88b3a28f?usp... :
PS4, Line 831: write32p(mtk_vlpcfg->debug_mon_reg[0]
`write32(&mtk_vlpcfg->debug_mon_reg[0]`

Same below.