net: mac80211: Add and use ibss_vdbg debugging macro

Simplify the use of #ifdef CONFIG_MAC80211_IBSS_DEBUG/#endif
by adding a logging macro to encapsulate the test.

Convert the appropriate uses too.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

include/net/mac80211.h

@@ -3857,4 +3857,15 @@ do {						\
 } while (0)
 #endif
 
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+#define ibss_vdbg(fmt, ...)			\
+	pr_debug(fmt, ##__VA_ARGS__)
+#else
+#define ibss_vdbg(fmt, ...)			\
+do {						\
+	if (0)					\
+		pr_debug(fmt, ##__VA_ARGS__);	\
+} while (0)
+#endif
+
 #endif /* MAC80211_H */