Old RC: "rate" is a float nowadays (fix #4088)

(cherry picked from commit 68c78698a5e97cdf0c7e66960bb26d81f48eacb2)

modules/control/rc.c

@@ -1077,7 +1077,7 @@ static int Input( vlc_object_t *p_this, char const *psz_cmd,
     }
     else if ( !strcmp( psz_cmd, "normal" ) )
     {
-        var_SetInteger( p_input, "rate", INPUT_RATE_DEFAULT );
+        var_SetFloat( p_input, "rate", 1. );
         i_error = VLC_SUCCESS;
     }
     else if ( !strcmp( psz_cmd, "frame" ) )