libertas: always show firmware release

Always shows the firmware release.

Also converts the firmware release into something that is easily comparable.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index c1c9733..58d7ef6 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -161,7 +161,7 @@
 
 	/** Wlan adapter data structure*/
 	/** STATUS variables */
-	u8 fwreleasenumber[4];
+	u32 fwrelease;
 	u32 fwcapinfo;
 	/* protected with big lock */