kconfig: add a note about the deps to the 'silentoldconfig' help

Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

README

@@ -174,6 +174,7 @@ CONFIGURING the kernel:
 	"make silentoldconfig"
 			   Like above, but avoids cluttering the screen
 			   with questions already answered.
+			   Additionally updates the dependencies.
 	"make defconfig"   Create a ./.config file by using the default
 			   symbol values from arch/$ARCH/defconfig.
 	"make allyesconfig"

scripts/kconfig/Makefile

@@ -83,7 +83,7 @@ help:
 	@echo  '  xconfig	  - Update current config utilising a QT based front-end'
 	@echo  '  gconfig	  - Update current config utilising a GTK based front-end'
 	@echo  '  oldconfig	  - Update current config utilising a provided .config as base'
-	@echo  '  silentoldconfig - Same as oldconfig, but quietly'
+	@echo  '  silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
 	@echo  '  randconfig	  - New config with random answer to all options'
 	@echo  '  defconfig	  - New config with default answer to all options'
 	@echo  '  allmodconfig	  - New config selecting modules when possible'