char: rename qemu_chr_printf() -> qemu_chr_fe_printf()

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/qemu-char.c b/qemu-char.c
index bab43d8..5a539b0 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -179,7 +179,7 @@
         s->chr_accept_input(s);
 }
 
-void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
+void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
 {
     char buf[READ_BUF_LEN];
     va_list ap;