fpu/softfloat: Move softfloat-specialize.h below FloatParts definition

We want to be able to specialize on the canonical representation.
Tested-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRichard Henderson <richard.henderson@linaro.org>

fpu/softfloat.c

@@ -95,16 +95,6 @@ this code that are retained.
 *----------------------------------------------------------------------------*/
 #include "fpu/softfloat-macros.h"
 
-/*----------------------------------------------------------------------------
-| Functions and definitions to determine:  (1) whether tininess for underflow
-| is detected before or after rounding by default, (2) what (if anything)
-| happens when exceptions are raised, (3) how signaling NaNs are distinguished
-| from quiet NaNs, (4) the default generated quiet NaNs, and (5) how NaNs
-| are propagated from function inputs to output.  These details are target-
-| specific.
-*----------------------------------------------------------------------------*/
-#include "softfloat-specialize.h"
-
 /*----------------------------------------------------------------------------
 | Returns the fraction bits of the half-precision floating-point value `a'.
 *----------------------------------------------------------------------------*/
@@ -322,6 +312,16 @@ static inline float64 float64_pack_raw(FloatParts p)
     return make_float64(pack_raw(float64_params, p));
 }
 
+/*----------------------------------------------------------------------------
+| Functions and definitions to determine:  (1) whether tininess for underflow
+| is detected before or after rounding by default, (2) what (if anything)
+| happens when exceptions are raised, (3) how signaling NaNs are distinguished
+| from quiet NaNs, (4) the default generated quiet NaNs, and (5) how NaNs
+| are propagated from function inputs to output.  These details are target-
+| specific.
+*----------------------------------------------------------------------------*/
+#include "softfloat-specialize.h"
+
 /* Canonicalize EXP and FRAC, setting CLS.  */
 static FloatParts canonicalize(FloatParts part, const FloatFmt *parm,
                                float_status *status)