mb/google/brya: Create taeko variant

Create the taeko variant of the brya0 reference board by copying
the template files to a new directory named for the variant.

(Auto-Generated by create_coreboot_variant.sh version 4.5.0.)

BUG=b:193685558
BRANCH=None
TEST=util/abuild/abuild -p none -t google/brya -x -a
make sure the build includes GOOGLE_TAEKO

Signed-off-by: Kevin Chang <kevin.chang@lcfc.corp-partner.google.com>
Change-Id: If738849bc3103c52a4c4d8a8aaef3f90a62ad5c1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56385
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/brya/Kconfig.name

@@ -28,3 +28,7 @@ config BOARD_GOOGLE_REDRIX
 config BOARD_GOOGLE_KANO
 	bool "-> Kano"
 	select BOARD_GOOGLE_BASEBOARD_BRYA
+
+config BOARD_GOOGLE_TAEKO
+	bool "-> Taeko"
+	select BOARD_GOOGLE_BASEBOARD_BRYA