update ULPs for s390 (#187)

Author: sharkcz

test/libm-test-ulps.h

@@ -250,5 +250,5 @@
 #define DELTA1663 CHOOSE(2, 2, 2, 2, 2, 1)	/* yn (10, 0.1) == -0.11831335132045197885e19  */
 #define DELTA1664 CHOOSE(7, 6, 3, 7, 6, 3)	/* yn (10, 0.7) == -0.42447194260703866924e10  */
 #define DELTA1665 CHOOSE(0, 1, 2, 0, 1, 1)	/* yn (10, 1.0) == -0.12161801427868918929e9  */
-#define DELTA1666 CHOOSE(1, 3, 1, 1, 2, 1)	/* yn (10, 2.0) == -129184.54220803928264  */
+#define DELTA1666 CHOOSE(1, 3, 3, 1, 2, 1)	/* yn (10, 2.0) == -129184.54220803928264  */
 #define DELTA1667 CHOOSE(0, 2, 1, 0, 2, 1)	/* yn (10, 10.0) == -0.35981415218340272205  */