mb/google/octopus: Create Dood variant

This commit creates a dood variant for Octopus. The initial settings
override the baseboard was copied from variant bobba.

BUG=b:141960652
BRANCH=octopus
TEST=emerge-octopus coreboot

Change-Id: Id8852e1f04f4356fac5445f6da6d56d430c88ad0
Signed-off-by: Tim Chen <tim-chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35768
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marco Chen <marcochen@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Martin Roth <martinroth@google.com>

src/mainboard/google/octopus/Kconfig.name

@@ -58,3 +58,9 @@ config BOARD_GOOGLE_GARG
 	select BASEBOARD_OCTOPUS_LAPTOP
 	select BOARD_GOOGLE_BASEBOARD_OCTOPUS
 	select NHLT_DA7219 if INCLUDE_NHLT_BLOBS
+
+config BOARD_GOOGLE_DOOD
+	bool "->  Dood"
+	select BASEBOARD_OCTOPUS_LAPTOP
+	select BOARD_GOOGLE_BASEBOARD_OCTOPUS
+	select NHLT_DA7219 if INCLUDE_NHLT_BLOBS