Keep mul wide in post-suppression coverage

Author: jlebar

ptx/crates/fuzzx-execgen/src/lib.rs

@@ -2309,7 +2309,6 @@ mod tests {
             emit_bmsk: false,
             emit_mad24: false,
             emit_mul24: false,
-            emit_mul_wide: false,
             emit_addc: false,
             emit_subc: false,
             emit_i32_boundary_immediates: false,
@@ -2490,6 +2489,7 @@ mod tests {
             "and.b64",
             "or.b64",
             "xor.b64",
+            "mul.wide.s32",
             "div.u32",
             "rem.u32",
             "div.s32",