spl: add TPL_DRIVER_MISC_SUPPORT option

This adds the TPL_DRIVER_MISC_SUPPORT option to allow activation of
DRIVER_MISC_SUPPORT for devices that need it in the TPL stage.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

common/spl/Kconfig

@@ -718,6 +718,14 @@ config TPL_BOOTROM_SUPPORT
 	  BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the
 	  boot device list, if not implemented for a given board)
 
+config TPL_DRIVERS_MISC_SUPPORT
+	bool "Support misc drivers in TPL"
+	help
+	  Enable miscellaneous drivers in TPL. These drivers perform various
+	  tasks that don't fall nicely into other categories, Enable this
+	  option to build the drivers in drivers/misc as part of an TPL
+	  build, for those that support building in TPL (not all drivers do).
+
 config TPL_ENV_SUPPORT
 	bool "Support an environment"
 	help

scripts/config_whitelist.txt

@@ -4909,7 +4909,6 @@ CONFIG_TI_KEYSTONE_SERDES
 CONFIG_TI_KSNAV
 CONFIG_TI_SPI_MMAP
 CONFIG_TMU_TIMER
-CONFIG_TPL_DRIVERS_MISC_SUPPORT
 CONFIG_TPL_LDSCRIPT
 CONFIG_TPL_MAX_SIZE
 CONFIG_TPL_PAD_TO