Various changes, main change use of SDCARD separation (gorbi)

- Moving back to SDCARD separated storage from Fused (gorbi)
- add OTG support (gorbi)
- GPS config updated for optimal NTP pooling
- adding wpa_supplicant.conf for clean /data/ install to work with wifi

Change-Id: I44113d236c69c55ce6c51880090c65a9d73cd3fb