staging: wilc1000: Disable for S390

The wilc1000 driver uses definitions such as DEBUG_LEVEL, DEBUG,
and PRINT_INFO. This causes compile errors on S390 which has similar
definitions in its core code. Disable the driver for S390 instead
of giving the non-standard messaging code credit by trying to fix it.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/Kconfig

 config WILC1000
 	tristate "WILC1000 support (WiFi only)"
+	depends on !S390
 	---help---
 		This module only support IEEE 802.11n WiFi.