firmware_loader: replace ---help--- with help

As per checkpatch using help is preferred over ---help---.
Signed-off-by: NLuis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/Kconfig

@@ -93,7 +93,7 @@ menu "Firmware loader"
 config FW_LOADER
 	tristate "Firmware loading facility" if EXPERT
 	default y
-	---help---
+	help
 	  This enables the firmware loading facility in the kernel. The kernel
 	  will first look for built-in firmware, if it has any. Next, it will
 	  look for the requested firmware in a series of filesystem paths: