include: Move fprintf_function to disas/

The previous commits have eliminated fprintf_function outside
disassemblers, simplifying code and cleaning up the ugly type-punning
fprintf_function seems to attract.  Move fprintf_function to
include/disas/dis-asm.h to reduce the temptation to abuse it.

I considered renaming it to fprintf_ftype (reverting that part of
commit 6e2d864e, v0.14.0) to get us closer to binutils, but I
figure the fork is too distant to make this worthwhile.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-18-armbru@redhat.com>

include/disas/dis-asm.h

@@ -9,8 +9,6 @@
 #ifndef DISAS_BFD_H
 #define DISAS_BFD_H
 
-#include "qemu/fprintf-fn.h"
-
 typedef void *PTR;
 typedef uint64_t bfd_vma;
 typedef int64_t bfd_signed_vma;
@@ -243,6 +241,9 @@ typedef struct symbol_cache_entry
     } udata;
 } asymbol;
 
+typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
+    GCC_FMT_ATTR(2, 3);
+
 enum dis_insn_type {
   dis_noninsn,			/* Not a valid instruction */
   dis_nonbranch,		/* Not a branch instruction */

include/qemu/fprintf-fn.h

-/*
- * Typedef for fprintf-alike function pointers.
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#ifndef QEMU_FPRINTF_FN_H
-#define QEMU_FPRINTF_FN_H
-
-typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
-    GCC_FMT_ATTR(2, 3);
-
-#endif