brcmsmac: Add brcms_dbg_dma() debug macro

Also convert relevant messages to use this macro.

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Tested-by: Daniel Wagner <wagi@monom.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/brcm80211/include/defs.h b/drivers/net/wireless/brcm80211/include/defs.h
index 12dd33f..54ffe7f 100644
--- a/drivers/net/wireless/brcm80211/include/defs.h
+++ b/drivers/net/wireless/brcm80211/include/defs.h
@@ -84,6 +84,7 @@
 #define BRCM_DL_RX		0x00000004
 #define BRCM_DL_TX		0x00000008
 #define BRCM_DL_INT		0x00000010
+#define BRCM_DL_DMA		0x00000020
 
 #define PM_OFF	0
 #define PM_MAX	1