mwifiex: disable auto deep sleep before unloading the driver

Since the auto deep sleep mode has been enabled at driver init time
we should disable it at driver unloading to shutdown the function
gracefully.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mwifiex/ioctl.h b/drivers/net/wireless/mwifiex/ioctl.h
index 7c1c5ee..f6bcc86 100644
--- a/drivers/net/wireless/mwifiex/ioctl.h
+++ b/drivers/net/wireless/mwifiex/ioctl.h
@@ -249,6 +249,7 @@
 };
 
 #define DEEP_SLEEP_ON  1
+#define DEEP_SLEEP_OFF 0
 #define DEEP_SLEEP_IDLE_TIME	100
 #define PS_MODE_AUTO		1