mb/google/oak: Move common selects to BOARD_GOOGLE_OAK_COMMON

BOARD_SPECIFIC_OPTIONS is duplicate to BOARD_GOOGLE_OAK_COMMON.
Thus, move all selects to the latter option.

Change-Id: Id80b8a9bcad9337c8aa76fa6e5d2c9752b8021b7
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78101
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
diff --git a/src/mainboard/google/oak/Kconfig b/src/mainboard/google/oak/Kconfig
index 7db0d44..900b04b 100644
--- a/src/mainboard/google/oak/Kconfig
+++ b/src/mainboard/google/oak/Kconfig
@@ -2,20 +2,6 @@
 
 config BOARD_GOOGLE_OAK_COMMON
 	def_bool n
-
-config BOARD_GOOGLE_OAK
-	select BOARD_GOOGLE_OAK_COMMON
-
-config BOARD_GOOGLE_ELM
-	select BOARD_GOOGLE_OAK_COMMON
-
-config BOARD_GOOGLE_HANA
-	select BOARD_GOOGLE_OAK_COMMON
-
-if BOARD_GOOGLE_OAK_COMMON
-
-config BOARD_SPECIFIC_OPTIONS
-	def_bool y
 	select SOC_MEDIATEK_MT8173
 	select BOARD_ROMSIZE_KB_4096
 	select COMMON_CBFS_SPI_WRAPPER
@@ -30,6 +16,17 @@
 	select MAINBOARD_HAS_CHROMEOS
 	select SPI_FLASH
 
+config BOARD_GOOGLE_OAK
+	select BOARD_GOOGLE_OAK_COMMON
+
+config BOARD_GOOGLE_ELM
+	select BOARD_GOOGLE_OAK_COMMON
+
+config BOARD_GOOGLE_HANA
+	select BOARD_GOOGLE_OAK_COMMON
+
+if BOARD_GOOGLE_OAK_COMMON
+
 config VBOOT
 	select EC_GOOGLE_CHROMEEC_SWITCHES
 	select VBOOT_VBNV_FLASH