mb/google/corsola: Add new board variant Skitty

Add a new Krabby follower device 'Skitty'.

BUG=b:331702790
TEST=emerge-corsola coreboot chromeos-bootimage
BRANCH=corsola

Change-Id: I2f12bccfda591a5baf8d23d217b6f1f81b059d15
Signed-off-by: Herbert Wu <herbert1_wu@pegatron.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81772
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Geoffrey Chien <geoffrey_chien@pegatron.corp-partner.google.com>
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Shawn Ku <shawnku@google.com>

src/mainboard/google/corsola/Kconfig

@@ -16,6 +16,7 @@ config BOARD_GOOGLE_KRABBY_COMMON
 	def_bool BOARD_GOOGLE_CHINCHOU || \
 		 BOARD_GOOGLE_KRABBY || \
 		 BOARD_GOOGLE_MAGIKARP || \
+		 BOARD_GOOGLE_SKITTY || \
 		 BOARD_GOOGLE_TENTACRUEL
 
 config BOARD_GOOGLE_STARYU_COMMON
@@ -58,6 +59,7 @@ config BOARD_SPECIFIC_OPTIONS
 					  BOARD_GOOGLE_VOLTORB
 	select DRIVER_PARADE_PS8640 if BOARD_GOOGLE_KRABBY || \
 				       BOARD_GOOGLE_MAGIKARP || \
+				       BOARD_GOOGLE_SKITTY || \
 				       BOARD_GOOGLE_STEELIX || \
 				       BOARD_GOOGLE_TENTACRUEL
 	select RTC
@@ -88,6 +90,7 @@ config MAINBOARD_PART_NUMBER
 	default "Ponyta" if BOARD_GOOGLE_PONYTA
 	default "Chinchou" if BOARD_GOOGLE_CHINCHOU
 	default "Wugtrio" if BOARD_GOOGLE_WUGTRIO
+	default "Skitty" if BOARD_GOOGLE_SKITTY
 
 config BOOT_DEVICE_SPI_FLASH_BUS
 	int

src/mainboard/google/corsola/Kconfig.name

@@ -31,6 +31,9 @@ config BOARD_GOOGLE_MAGIKARP
 config BOARD_GOOGLE_CHINCHOU
 	bool "->  Chinchou"
 
+config BOARD_GOOGLE_SKITTY
+	bool "->  Skitty"
+
 comment "Staryu"
 
 config BOARD_GOOGLE_STARMIE