Camera: Fix HAL call order for setCallback

setCallback() must be the first call made to the camera HAL per spec.
Revert the callflow reordering in ProviderInfo::initialize().

If the physical camera status change is triggered during
ProverInfo::initialize(), the listener->onDeviceStatusChanged call is
skipped anyway.

Bug: 160984331
Test: Camera CTS on emulator
Change-Id: Iaf69bedf03616bef55400a9d7a361f722341478b