staging: octeon-usb: correct driver name in Kconfig help text

The module name in the Makefile and in the driver source file is
octeon-hcd, so correct the Kconfig text to be the same.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/octeon-usb/Kconfig

@@ -6,5 +6,5 @@ config OCTEON_USB
 	  Networks' products in the Octeon family.
 
 	  To compile this driver as a module, choose M here. The module
-	  will be called octeon-usb.
+	  will be called octeon-hcd.