libertas: use lbs_pr_XX instead of printk

... because lbs_pr_XXX prefixes all messages with "libertas: "

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 2d9bbcc..e8d0144 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -110,7 +110,7 @@
 	 * CF card    firmware 5.0.16p0:   cap 0x00000303
 	 * USB dongle firmware 5.110.17p2: cap 0x00000303
 	 */
-	printk("libertas: %s, fw %u.%u.%up%u, cap 0x%08x\n",
+	lbs_pr_info("%s, fw %u.%u.%up%u, cap 0x%08x\n",
 		print_mac(mac, cmd.permanentaddr),
 		priv->fwrelease >> 24 & 0xff,
 		priv->fwrelease >> 16 & 0xff,