Tests: Fix last commit on width (verilator#4781).

Author: wsnyder

test_regress/t/t_math_wide_bad.out

@@ -2,10 +2,10 @@
    23 |    assign r = real'(a);
       |               ^~~~
                     ... For error description see https://verilator.org/warn/UNSUPPORTED?v=latest
-%Error-UNSUPPORTED: t/t_math_wide_bad.v:22:18: Unsupported: operator POWSS operator of 576 bits exceeds hardcoded limit VL_MULS_MAX_WORDS in verilatedos.h
+%Error-UNSUPPORTED: t/t_math_wide_bad.v:22:18: Unsupported: operator POWSS operator of 5472 bits exceeds hardcoded limit VL_MULS_MAX_WORDS in verilatedos.h
    22 |    assign z2 = a ** 3;
       |                  ^~
-%Error-UNSUPPORTED: t/t_math_wide_bad.v:21:17: Unsupported: operator MULS operator of 576 bits exceeds hardcoded limit VL_MULS_MAX_WORDS in verilatedos.h
+%Error-UNSUPPORTED: t/t_math_wide_bad.v:21:17: Unsupported: operator MULS operator of 5472 bits exceeds hardcoded limit VL_MULS_MAX_WORDS in verilatedos.h
    21 |    assign z = a * b;
       |                 ^
 %Error: Exiting due to

test_regress/t/t_math_wide_bad.v

@@ -11,11 +11,11 @@ module t (/*AUTOARG*/
    a, b
    );
 
-   input signed [17*32 : 0] a;
-   input signed [17*32 : 0] b;
+   input signed [170*32 : 0] a;
+   input signed [170*32 : 0] b;
 
-   output signed [17*32 : 0] z;
-   output signed [17*32 : 0] z2;
+   output signed [170*32 : 0] z;
+   output signed [170*32 : 0] z2;
    output real r;
 
    assign z = a * b;