target-xxx: Use fprintf_function (format checking)

fprintf_function uses format checking with GCC_FMT_ATTR.

Format errors were fixed in
* target-i386/helper.c
* target-mips/translate.c
* target-ppc/translate.c

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/cpu-all.h b/cpu-all.h
index ba9d766..30ae17d 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -765,12 +765,10 @@
 CPUState *cpu_copy(CPUState *env);
 CPUState *qemu_get_cpu(int cpu);
 
-void cpu_dump_state(CPUState *env, FILE *f,
-                    int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
+void cpu_dump_state(CPUState *env, FILE *f, fprintf_function cpu_fprintf,
                     int flags);
-void cpu_dump_statistics (CPUState *env, FILE *f,
-                          int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
-                          int flags);
+void cpu_dump_statistics(CPUState *env, FILE *f, fprintf_function cpu_fprintf,
+                         int flags);
 
 void QEMU_NORETURN cpu_abort(CPUState *env, const char *fmt, ...)
     GCC_FMT_ATTR(2, 3);