suppress warning in gcd()

SVN-Revision: 8609

target/linux/ar7-2.6/files/arch/mips/ar7/clock.c

@@ -108,7 +108,7 @@ static int gcd(int a, int b)
 		a = b;
 		b = c;
 	}
-	while (c = (a % b)) {
+	while ((c = (a % b))) {
 		a = b;
 		b = c;
 	}