i9300: fix speaker not working after bt, headset mic

https://github.com/CyanogenMod/android_device_samsung_t0lte/commit/0ebce3b5ee7287135fadc4846c35e4e089ef9526

Change-Id: I24bc6e1b49599192b7628242786e684960395f89
Merge branch 'cm-10.1' of git://github.com/CyanogenMod/android_device_samsung_i9300 into cm-10.1