Enable missing icount benchmarks

A few new functions were added but this list did not get updated. Do so
here.

crates/libm-test/benches/icount.rs

@@ -107,8 +107,12 @@ main!(
     icount_bench_fma_group,
     icount_bench_fmaf_group,
     icount_bench_fmax_group,
+    icount_bench_fmaxf128_group,
+    icount_bench_fmaxf16_group,
     icount_bench_fmaxf_group,
     icount_bench_fmin_group,
+    icount_bench_fminf128_group,
+    icount_bench_fminf16_group,
     icount_bench_fminf_group,
     icount_bench_fmod_group,
     icount_bench_fmodf128_group,
@@ -155,6 +159,8 @@ main!(
     icount_bench_rintf16_group,
     icount_bench_rintf_group,
     icount_bench_round_group,
+    icount_bench_roundf128_group,
+    icount_bench_roundf16_group,
     icount_bench_roundf_group,
     icount_bench_scalbn_group,
     icount_bench_scalbnf_group,