add patch, avoid SIGFPE on foxg20

package/mpd/patches/patch-src_output_alsa_plugin_c

@@ -0,0 +1,14 @@
+--- mpd-0.16.2.orig/src/output/alsa_plugin.c	2011-03-19 01:41:53.000000000 +0100
++++ mpd-0.16.2/src/output/alsa_plugin.c	2011-05-14 13:44:14.000000000 +0200
+@@ -646,8 +646,9 @@ alsa_play(void *data, const void *chunk,
+ 	while (true) {
+ 		snd_pcm_sframes_t ret = ad->writei(ad->pcm, chunk, size);
+ 		if (ret > 0) {
+-			ad->period_position = (ad->period_position + ret)
+-				% ad->period_frames;
++			// SIGFPE!
++			//ad->period_position = (ad->period_position + ret)
++			//	% ad->period_frames;
+ 			return ret * ad->frame_size;
+ 		}
+