mb/hp/snb_ivb_desktops: Make baseboard more generic

In preparation to merging all the other HP sandy/ivy desktops in here
as variants.

Move hda_verb.c, early_init.c, gma-mainboard.ads and data.vbt into
variant directories.

Kconfig:
Move options not common to the others under the variants instead.

devicetree:
Move XHCI to variant overridetrees (8200 gen has no USB 3)

board_info.txt:
Make it more generic. It seems to be copied from 8200 SFF and
inaccurate to Z220 anyway.

TEST: BUILD_TIMELESS=1 & Don't include .config in ROM image. CMT and
SFF ROMs are (SHA1) same as before.

Change-Id: Icce22efb8d353359781db3f03c67058d8fbe11b8
Signed-off-by: Riku Viitanen <riku.viitanen@protonmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79543
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nicholas Chin <nic.c3.14@gmail.com>

0 files changed, 0 insertions, 0 deletions