mpegplayer: oops, added an IRAM init/buffer get order switch that should have been reversed before committing

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13120 a1c6a512-1295-4272-9138-f99709370657
diff --git a/apps/plugins/mpegplayer/mpegplayer.c b/apps/plugins/mpegplayer/mpegplayer.c
index 50452b6..0903da6 100644
--- a/apps/plugins/mpegplayer/mpegplayer.c
+++ b/apps/plugins/mpegplayer/mpegplayer.c
@@ -1566,11 +1566,12 @@
     }
 
     /* Initialize IRAM - stops audio and voice as well */
-    audiobuf = api->plugin_get_audio_buffer(&audiosize);
     PLUGIN_IRAM_INIT(api)
 
     rb = api;
 
+    audiobuf = rb->plugin_get_audio_buffer(&audiosize);
+
     /* Set disk pointers to NULL */
     disk_buf_end = disk_buf = NULL;