strongbad / coachz : Add Initial Support

BUG=b:162409909
BUG=b:164196066
BRANCH=NONE
TEST=Verify build of strongbad target

Signed-off-by: Bob Moragues <moragues@chromium.org>
Change-Id: If83bd2c8f25fdd3c9625f40121e55c3c922a66fe
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45276
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

Documentation/security/vboot/list_vboot.md

@@ -142,6 +142,7 @@
 - Trogdor
 - Lazor
 - Bubs
+- Coachz
 - Veyron_Jaq (Haier Chromebook 11)
 - Veyron_Jerry (Hisense Chromebook 11)
 - Veyron_Mighty (Haier Chromebook 11(edu))

src/mainboard/google/trogdor/Kconfig

@@ -52,6 +52,7 @@ config EC_GOOGLE_CHROMEEC_SPI_BUS
 config MAINBOARD_PART_NUMBER
 	string
 	default "Bubs" if BOARD_GOOGLE_BUBS
+	default "Coachz" if BOARD_GOOGLE_COACHZ
 	default "Lazor" if BOARD_GOOGLE_LAZOR
 	default "Pompom" if BOARD_GOOGLE_POMPOM
 	default "Trogdor" if BOARD_GOOGLE_TROGDOR

src/mainboard/google/trogdor/Kconfig.name

@@ -4,6 +4,10 @@ config BOARD_GOOGLE_BUBS
 	bool "Bubs"
 	select BOARD_GOOGLE_TROGDOR_COMMON
 
+config BOARD_GOOGLE_COACHZ
+	bool "Coachz"
+	select BOARD_GOOGLE_TROGDOR_COMMON
+
 config BOARD_GOOGLE_LAZOR
 	bool "Lazor"
 	select BOARD_GOOGLE_TROGDOR_COMMON