staging: olpc_dcon: prefer 'help' in KConfig

Fix for a style warning reported by checkpatch.pl in KConfig
suggesting to use 'help' instead of '---help---'.
Signed-off-by: Cristian Kubis <cristian.kubis@tsunix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/olpc_dcon/Kconfig

@@ -4,7 +4,7 @@ config FB_OLPC_DCON
 	depends on I2C
 	depends on (GPIO_CS5535 || GPIO_CS5535=n)
 	select BACKLIGHT_CLASS_DEVICE
-	---help---
+	help
 	  In order to support very low power operation, the XO laptop uses a
 	  secondary Display CONtroller, or DCON.  This secondary controller
 	  is present in the video pipeline between the primary display
@@ -18,7 +18,7 @@ config FB_OLPC_DCON_1
 	bool "OLPC XO-1 DCON support"
 	depends on FB_OLPC_DCON && GPIO_CS5535
 	default y
-	---help---
+	help
 	  Enable support for the DCON in XO-1 model laptops.  The kernel
 	  communicates with the DCON using model-specific code.  If you
 	  have an XO-1 (or if you're unsure what model you have), you should
@@ -28,7 +28,7 @@ config FB_OLPC_DCON_1_5
 	bool "OLPC XO-1.5 DCON support"
 	depends on FB_OLPC_DCON && ACPI
 	default y
-	---help---
+	help
 	  Enable support for the DCON in XO-1.5 model laptops.  The kernel
 	  communicates with the DCON using model-specific code.  If you
 	  have an XO-1.5 (or if you're unsure what model you have), you