[M] Change in coreboot[master]: mb/purism/librem_cnl: Configure SuperIO for Librem Mini v1/v2

[Kyösti Mälkki (Code Review)]

Attention is currently required from: Angel Pons, Jonathon Hall, Felix Held.

Kyösti Mälkki has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74369 )

Change subject: mb/purism/librem_cnl: Configure SuperIO for Librem Mini v1/v2
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Patch Set 4:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/74369/comment/1f95c0be_75a432c7 
PS4, Line 17: open and BRAM bank 1 is accessible.
LPC I/O range happens later with CB:74363.

File src/mainboard/purism/librem_cnl/variants/librem_mini/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/74369/comment/9a8dcbd1_4df41bc5 
PS4, Line 166: 					io 0x62 = 0x360	# BRAM1 I/O base address
I'm fine with the address. If you only need 0x360/0x361 pair, there might be some smaller LPC decode enable you can use. Like at 0x200 or 0x208. Then again, I don't remember any typical hardware probing and poking at 0x360/0x361 so that should be a safe choice.