[PATCH] exec/helper-head: Include missing "fpu/softfloat-types.h" header

[Philippe Mathieu-Daudé]

'dh_ctype_f32' is defined as 'float32', itself declared
in "fpu/softfloat-types.h". Include this header to avoid
when refactoring other headers:

  In file included from include/exec/helper-proto.h:7,
                   from include/tcg/tcg-op.h:29,
                   from ../../tcg/tcg-op-vec.c:22:
  include/exec/helper-head.h:44:22: error: unknown type name ‘float32’; did you 
mean ‘_Float32’?
     44 | #define dh_ctype_f32 float32
        |                      ^~~~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 include/exec/helper-head.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/exec/helper-head.h b/include/exec/helper-head.h
index 584b120312..325a42b14e 100644
--- a/include/exec/helper-head.h
+++ b/include/exec/helper-head.h
@@ -18,6 +18,8 @@
 #ifndef EXEC_HELPER_HEAD_H
 #define EXEC_HELPER_HEAD_H
 
+#include "fpu/softfloat-types.h"
+
 #define HELPER(name) glue(helper_, name)
 
 /* Some types that make sense in C, but not for TCG.  */
-- 
2.38.1