mb/google/trogdor: Add variant Gelarshie

New board introduced to trogdor family.

BUG=b:223101874
BRANCH=none
TEST=make

Signed-off-by: Mars Chen <chenxiangrui@huaqin.corp-partner.google.com>
Change-Id: Ie83df3c753d0863841430fe62805250ef8efeae9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62642
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

Documentation/security/vboot/list_vboot.md

@@ -206,6 +206,7 @@
 - Stout (Lenovo Thinkpad X131e Chromebook)
 - Bubs
 - Coachz
+- Gelarshie
 - Homestar
 - Kingoftown
 - Lazor

src/mainboard/google/trogdor/Kconfig

@@ -73,6 +73,7 @@ config EC_GOOGLE_CHROMEEC_SPI_BUS
 config MAINBOARD_PART_NUMBER
 	default "Bubs" if BOARD_GOOGLE_BUBS
 	default "Coachz" if BOARD_GOOGLE_COACHZ
+	default "Gelarshie" if BOARD_GOOGLE_GELARSHIE
 	default "Homestar" if BOARD_GOOGLE_HOMESTAR
 	default "Kingoftown" if BOARD_GOOGLE_KINGOFTOWN
 	default "Lazor" if BOARD_GOOGLE_LAZOR

src/mainboard/google/trogdor/Kconfig.name

@@ -10,6 +10,10 @@ config BOARD_GOOGLE_COACHZ
 	bool "->  Coachz"
 	select BOARD_GOOGLE_TROGDOR_COMMON
 
+config BOARD_GOOGLE_GELARSHIE
+	bool "->  Gelarshie"
+	select BOARD_GOOGLE_TROGDOR_COMMON
+
 config BOARD_GOOGLE_HOMESTAR
 	bool "->  Homestar"
 	select BOARD_GOOGLE_TROGDOR_COMMON