Staging: unisys: visorinput: Replace '--help--' with 'help' in Kconfig

Replace '--help--' in Kconfig and indent the subsequent text to silence
checkpatch.pl
warning:
WARNING: prefer 'help' over '---help---' for new help texts
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorinput/Kconfig

@@ -5,7 +5,7 @@
 config UNISYS_VISORINPUT
 	tristate "Unisys visorinput driver"
 	depends on UNISYSSPAR && UNISYS_VISORBUS && INPUT
-	---help---
+	help
 		The Unisys s-Par visorinput driver provides a virtualized system
 		console (keyboard and mouse) that is accessible through the
 		s-Par firmware's user interface. s-Par provides video using the EFI