softfloat: bf16: change parameter type to match function name

Though we use float16_t for vs2 in vfncvtbf16_f_f_w.h and vfncvtbf16_sat_f_f_w.h,
 it can pass compilation since they are the same type

Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>

softfloat/bf16_to_e4m3.c

@@ -41,7 +41,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "specialize.h"
 #include "softfloat.h"
 
-e4m3_t bf16_to_e4m3( float16_t a, bool saturationMode )
+e4m3_t bf16_to_e4m3( bfloat16_t a, bool saturationMode )
 {
    return f32_to_e4m3( bf16_to_f32( a ), saturationMode );
 }

softfloat/bf16_to_e5m2.c

@@ -41,7 +41,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "specialize.h"
 #include "softfloat.h"
 
-e5m2_t bf16_to_e5m2( float16_t a, bool saturationMode )
+e5m2_t bf16_to_e5m2( bfloat16_t a, bool saturationMode )
 {
    return f32_to_e5m2( bf16_to_f32( a ), saturationMode );
 }

softfloat/softfloat.h

@@ -198,8 +198,8 @@ uint_fast8_t bf16_to_ui8( bfloat16_t, uint_fast8_t, bool );
 uint_fast32_t bf16_to_ui32( bfloat16_t, uint_fast8_t, bool );
 int_fast8_t bf16_to_i8( bfloat16_t, uint_fast8_t, bool );
 int_fast32_t bf16_to_i32( bfloat16_t, uint_fast8_t, bool );
-e4m3_t bf16_to_e4m3( float16_t, bool );
-e5m2_t bf16_to_e5m2( float16_t, bool );
+e4m3_t bf16_to_e4m3( bfloat16_t, bool );
+e5m2_t bf16_to_e5m2( bfloat16_t, bool );
 float32_t bf16_to_f32( bfloat16_t );
 float64_t bf16_to_f64( bfloat16_t );
 bfloat16_t bf16_add( bfloat16_t, bfloat16_t );