Blackfin: fix typo in hweight asm

Run ONES on the incoming value rather than random garbage.  This fixes
random crashes with some networking code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

arch/blackfin/include/asm/bitops.h

@@ -119,7 +119,7 @@ static inline unsigned int hweight32(unsigned int w)
 {
 	unsigned int res;
 
-	__asm__ ("%0.l = ONES %0;"
+	__asm__ ("%0.l = ONES %1;"
 		"%0 = %0.l (Z);"
 		: "=d" (res) : "d" (w));
 	return res;