yuga: re-enable "Eject SD card" option

Needed after http://review.cyanogenmod.org/62708/

Change-Id: Iaf963927a33e0f8ca2c4ef26aa77dd85e752bfe6
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_device_sony_yuga into cd-4.4