Scalar F16->F32 evaluation stubs of bitcast-based and fabsf-based variants

PiperOrigin-RevId: 408736740
diff --git a/CMakeLists.txt b/CMakeLists.txt
index acbfc24..ebc7404 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -792,7 +792,8 @@
   src/f32-vunary/gen/vsqr-scalar-x1.c
   src/f32-vunary/gen/vsqr-scalar-x2.c
   src/f32-vunary/gen/vsqr-scalar-x4.c
-  src/math/cvt-f32-f16-scalar.c
+  src/math/cvt-f32-f16-scalar-bitcast.c
+  src/math/cvt-f32-f16-scalar-fabsf.c
   src/math/expm1minus-scalar-rr2-lut4-p4.c
   src/math/expm1minus-scalar-rr2-lut8-p3.c
   src/math/expm1minus-scalar-rr2-lut8-p4.c