staging: unisys: use help instead of ---help--- in Kconfig

  - Resolve the following warning from the Kconfig,
    "WARNING: prefer 'help' over '---help---' for new help texts"
Signed-off-by: Moses Christopher <moseschristopherb@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/Kconfig

@@ -4,7 +4,7 @@
 #
 menuconfig UNISYSSPAR
 	bool "Unisys SPAR driver support"
-	---help---
+	help
 	  Support for the Unisys SPAR drivers
 
 if UNISYSSPAR