[XL] Change in coreboot[master]: src/mainboard/dell/inspiron_*: Add Support for Dell Inspiron 620 & 3847

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/71999 )

Change subject: src/mainboard/dell/inspiron_*: Add Support for Dell Inspiron 620 & 3847
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Patch Set 1:

(4 comments)

Commit Message:

Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-168531):
https://review.coreboot.org/c/coreboot/+/71999/comment/9e304468_2f535a14 
PS1, Line 9: Add Initial Support for Dell Inspiron 620 and Dell Inspiron 3847. (using Autoport)
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Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-168531):
https://review.coreboot.org/c/coreboot/+/71999/comment/d54e1dcf_e3f44548 
PS1, Line 10: On my 620, UEFI freezes up for ~5m then boots, my 2nd RAM slot doesn't get recognized (even in stock rom, although stock doesn't boot up and gives freeze or POST), else everything works from what I can tell (could mean my board is partially damaged)
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Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-168531):
https://review.coreboot.org/c/coreboot/+/71999/comment/64a9b046_22652ae1 
PS1, Line 11: On my 3847, everything works, UEFI doesn't freeze up, but my external GPU doesn't work (internal does), it is a NVIDIA GEFORCE GT 710 and cannot figure out how to default to it, though the linux driver works fine with it (windows was also untested on both machines).
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Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-168531):
https://review.coreboot.org/c/coreboot/+/71999/comment/b99e2bed_8b7c3be5 
PS1, Line 12: NOTE: As of 2022, I need to get a replacement 620 MB, due to the fact that the BIOS chip fried. My 3847 Works fine though. Someone also had the same freezing issue on a SNB in coreboot discord, which later upgraded to IVY Bridge, could also need a SATA Patch, not known yet until a get a new MB.
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