zero: explicitly build libion
zero: explicitly build libion

Change-Id: I1c94966c985c89eda9d78b5b3121219fc13a1d14

TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common