Camera: fix crash from storage selection patch

Storage selection moves patch resuseNail down further than preview
start, which causes a race condition and the Camera will crash if
preview is started before nail is created.

I'm not sure why it was moved down.

Change-Id: I2f747d8fa9e00ac0d0869bb19a32620294ef21b4
Merge remote branch 'cm/cm-10.1'