Change in coreboot[master]: mb/google/brya: add BASEBOARD_DIR to support different baseboard

[Zhuohao Lee (Code Review)]

Attention is currently required from: Zhuohao Lee.
Hello build bot (Jenkins), Furquan Shaikh, Tim Wawrzynczak, EricR Lai,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/56308

to look at the new patch set (#2).

Change subject: mb/google/brya: add BASEBOARD_DIR to support different baseboard
......................................................................

mb/google/brya: add BASEBOARD_DIR to support different baseboard

In order to support different baseboard configuration, we
add the BASEBOARD_DIR to switch the directory. The expected
structure looks like:

mb
..|_ google
.........|_ brya
.............. |_ variants
.....................|_ baseboard
..............................|_ brya
....................................|_ gpio.c
....................................|_ memory.c
....................................|_ devicetree
..............................|_ brask
....................................|_ gpio.c
....................................|_ memory.c
....................................|_ devicetree
......................|_ brya_variant1
......................|_ brya_variant2
......................|_ ...
......................|_ brask_variant1
......................|_ brask_variant2
......................|_ ...
...............|_ <all mb common code>

BUG=b:191472401
BRANCH=None
TEST=build pass

Change-Id: Ic99e42dbbd27fa3e1f6cb3a1b5daee1c8c7b1083
Signed-off-by: Zhuohao Lee 
---
M src/mainboard/google/brya/Kconfig
M src/mainboard/google/brya/Makefile.inc
R src/mainboard/google/brya/variants/baseboard/brya/Makefile.inc
R src/mainboard/google/brya/variants/baseboard/brya/devicetree.cb
R src/mainboard/google/brya/variants/baseboard/brya/gpio.c
R src/mainboard/google/brya/variants/baseboard/brya/include/baseboard/ec.h
R src/mainboard/google/brya/variants/baseboard/brya/include/baseboard/gpio.h
R src/mainboard/google/brya/variants/baseboard/brya/include/baseboard/variants.h
R src/mainboard/google/brya/variants/baseboard/brya/memory.c
9 files changed, 9 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/08/56308/2