b43legacy: Fix nondebug build

Fix a typo.
Signed-off-by: NMichael Buesch <mb@bu3sch.de>
Acked-by: NStefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43legacy/b43legacy.h

@@ -343,7 +343,7 @@ enum {
 #else
 /* This will evaluate the argument even if debugging is disabled. */
 static inline bool __b43legacy_warn_on_dummy(bool x) { return x; }
-# define B43_WARN_ON(x)	__b43legacy_warn_on_dummy(unlikely(!!(x)))
+# define B43legacy_WARN_ON(x)	__b43legacy_warn_on_dummy(unlikely(!!(x)))
 # define B43legacy_BUG_ON(x)	do { /* nothing */ } while (0)
 # define B43legacy_DEBUG	0
 #endif