s390x: Update ulps

Based on results from a z16 system with a GCC 8 build.

sysdeps/s390/fpu/libm-test-ulps

@@ -977,24 +977,24 @@ float: 1
 ldouble: 3
 
 Function: "exp10m1":
-double: 2
-float: 1
-ldouble: 1
+double: 4
+float: 2
+ldouble: 3
 
 Function: "exp10m1_downward":
-double: 1
-float: 1
-ldouble: 3
+double: 3
+float: 3
+ldouble: 6
 
 Function: "exp10m1_towardzero":
-double: 1
-float: 1
-ldouble: 3
+double: 2
+float: 3
+ldouble: 6
 
 Function: "exp10m1_upward":
-double: 3
-float: 1
-ldouble: 3
+double: 5
+float: 3
+ldouble: 6
 
 Function: "exp2":
 double: 1
@@ -1014,24 +1014,24 @@ float: 1
 ldouble: 2
 
 Function: "exp2m1":
-double: 1
-float: 1
-ldouble: 1
+double: 2
+float: 2
+ldouble: 2
 
 Function: "exp2m1_downward":
-double: 1
-float: 1
-ldouble: 2
+double: 3
+float: 3
+ldouble: 3
 
 Function: "exp2m1_towardzero":
-double: 2
-float: 1
-ldouble: 2
+double: 3
+float: 2
+ldouble: 4
 
 Function: "exp2m1_upward":
-double: 1
-float: 1
-ldouble: 2
+double: 3
+float: 3
+ldouble: 5
 
 Function: "exp_downward":
 double: 1
@@ -1207,24 +1207,24 @@ float: 2
 ldouble: 1
 
 Function: "log10p1":
-double: 1
-float: 1
+double: 2
+float: 2
 ldouble: 3
 
 Function: "log10p1_downward":
 double: 2
-float: 1
-ldouble: 2
+float: 3
+ldouble: 4
 
 Function: "log10p1_towardzero":
-double: 2
+double: 3
 float: 2
-ldouble: 2
+ldouble: 3
 
 Function: "log10p1_upward":
 double: 2
-float: 1
-ldouble: 3
+float: 3
+ldouble: 4
 
 Function: "log1p":
 double: 1