fixed reverb/chorus after change of samplerate

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1444 0778d3d1-df1d-0410-868b-ea421aaaa00d

plugins/sf2_player/sf2_player.cpp

@@ -513,6 +513,8 @@ void sf2Instrument::updateSampleRate( void )
 		}
 		m_synthMutex.unlock();
 	}
+	updateReverb();
+	updateChorus();
 }