scripts: remove some configs in config_whitelist.txt

Remove some config finishing by _ badly added by
scripts/build-whitelist.sh when joker is used in comments.

for example:
  doc/uImage.FIT/command_syntax_extensions.txt:
     ... #ifdef CONFIG_OF_*  |	...

  cmd/nvedit.c:# error Define one of CONFIG_ENV_IS_IN_{EEPROM| \
     FLASH|MMC|FAT|EXT4|\

Remove also configs only used in comments:
- CONFIG_BOOGER in include/linux/kconfig.h
- CONFIG_COMMANDS
- CONFIG_INIT_IGNORE_ERROR
- CONFIG_REG_*
- CONFIG_HOTPLUG : drivers/watchdog/omap_wdt.c:18

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>