Change in coreboot[master]: (for test)Add i945G based mainboard

[HAOUAS Elyes (Code Review)]

HAOUAS Elyes has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/25509 )

Change subject: (for test)Add i945G based mainboard
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Patch Set 48:

here , I have disabled integrated graphic card.
dmesg on FreeBSD: https://pastebin.com/4vjimMBJ - ( line #30 "module_register_init: MOD_LOAD (vesa, 0xffffffff8112e0f0, 0) error 19"
the board boots.

- dmesg on linux: https://pastebin.com/tah8SBwm - the board boots.

and here is the log: https://www.dropbox.com/s/2jjiugd0mmpdksm/test.log?dl=0

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2nd test , just for fun : 
no integrated graphic card and I've populated the 4 DIMMs with in  2 * 2 Go + 2 * 1Go ( = 6Go). The chip regarding the datasheet, it support 4Go.
it start booting on FreeBSD and hung on this screen: https://www.dropbox.com/s/4lqj4bhu0ly4sp1/IMG_20200522_141450_2.jpg?dl=0