[coreboot-gerrit] Change in coreboot[master]: mb/adlrvp: Add new ADL P board variant for MCHP1727

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Paul Menzel, Furquan Shaikh, Tim Wawrzynczak, Brandon Breitenstein.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56839 )

Change subject: mb/adlrvp: Add new ADL P board variant for MCHP1727
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Patch Set 7:

(1 comment)

File src/mainboard/intel/adlrvp/Kconfig:

https://review.coreboot.org/c/coreboot/+/56839/comment/42bb31f8_d393674a 
PS7, Line 41: adlrvp_p_ext_ec
Actually if I am reading this code correctly, is the correct overridetree.cb being selected?

The OVERRIDE_DEVICETREE is defined as 
`variants/$(CONFIG_VARIANT_DIR)/overridetree.cb`
and right here VARIANT_DIR is set as adlrvp_p_ext_ec, so shouldn't the overridetree.cb used be:
`variants/adlrvp_p_ext_ec/overridetree.cb`
while below it's
`variants/adlrvp_p_mchp/overridetree.cb`