mb/google/gru: Move selects from Kconfig.name to Kconfig

Selects should be done in the Kconfig file instead of Kconfig.name and
not mixed over both files.

Change-Id: Id7f9b598cc9df51ddf664b851172cc96a710c580
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75023
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/gru/Kconfig b/src/mainboard/google/gru/Kconfig
index 23926b6..837b06d 100644
--- a/src/mainboard/google/gru/Kconfig
+++ b/src/mainboard/google/gru/Kconfig
@@ -3,6 +3,24 @@
 config BOARD_GOOGLE_GRU_COMMON  # Umbrella option to be selected by variant boards.
 	def_bool n
 
+config BOARD_GOOGLE_KEVIN
+	select BOARD_GOOGLE_GRU_COMMON
+
+config BOARD_GOOGLE_GRU
+	select BOARD_GOOGLE_GRU_COMMON
+
+config BOARD_GOOGLE_BOB
+	select BOARD_GOOGLE_GRU_COMMON
+
+config BOARD_GOOGLE_SCARLET
+	select BOARD_GOOGLE_GRU_COMMON
+
+config BOARD_GOOGLE_NEFARIO
+	select BOARD_GOOGLE_GRU_COMMON
+
+config BOARD_GOOGLE_RAINIER
+	select BOARD_GOOGLE_GRU_COMMON
+
 if BOARD_GOOGLE_GRU_COMMON
 
 # Most Grus have TPM2 but later Kevins don't... decide this in one place for
diff --git a/src/mainboard/google/gru/Kconfig.name b/src/mainboard/google/gru/Kconfig.name
index 04571c8..5d8f215 100644
--- a/src/mainboard/google/gru/Kconfig.name
+++ b/src/mainboard/google/gru/Kconfig.name
@@ -2,24 +2,18 @@
 
 config BOARD_GOOGLE_KEVIN
 	bool "->  Kevin (Samsung Chromebook Plus)"
-	select BOARD_GOOGLE_GRU_COMMON
 
 config BOARD_GOOGLE_GRU
 	bool "->  Gru"
-	select BOARD_GOOGLE_GRU_COMMON
 
 config BOARD_GOOGLE_BOB
 	bool "->  Bob (Asus Chromebook Flip C101PA)"
-	select BOARD_GOOGLE_GRU_COMMON
 
 config BOARD_GOOGLE_SCARLET
 	bool "->  Scarlet"
-	select BOARD_GOOGLE_GRU_COMMON
 
 config BOARD_GOOGLE_NEFARIO
 	bool "->  Nefario"
-	select BOARD_GOOGLE_GRU_COMMON
 
 config BOARD_GOOGLE_RAINIER
 	bool "->  Rainier"
-	select BOARD_GOOGLE_GRU_COMMON