Default SGTL5000 line out to enabled

control_sgtl5000.cpp

 	write(CHIP_ADCDAC_CTRL, 0x0000); // disable dac mute
 	write(CHIP_DAC_VOL, 0x3C3C); // digital gain, 0dB
 	write(CHIP_ANA_HP_CTRL, 0x7F7F); // set volume (lowest level)
-	write(CHIP_ANA_CTRL, 0x0136);  // enable zero cross detectors
+	write(CHIP_ANA_CTRL, 0x0036);  // enable zero cross detectors
 	//mute = false;
 	semi_automated = true;
 	return true;