brcm80211: Use pr_fmt and pr_<level>

Convert printks to pr_<level>
Prefix logging with pr_fmt.
Use ##__VA_ARGS__ in some WL_ logging macros.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
index ac8d1f4..b3e3b7f 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
@@ -19,6 +19,8 @@
  * For certain dcmd codes, the dongle interprets string data from the host.
  ******************************************************************************/
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/types.h>
 #include <linux/netdevice.h>
 #include <linux/sched.h>