fstab: mount external storage

* Vold handles mounts in 4.4

Signed-off-by: bmc08gt <brandon.mcansh@gmail.com>
d2: Move feature dependent overlays

Signed-off-by: bmc08gt <brandon.mcansh@gmail.com>
d2: Use device specific libhealthd

* d2 has different battery capacity path than default

Signed-off-by: bmc08gt <brandon.mcansh@gmail.com>
BT: Add interleave scan

* allows both Bluetooth LE and classic devices to be discovered

Signed-off-by: bmc08gt <brandon.mcansh@gmail.com>
d2: Show LTE option for preferred network

Signed-off-by: bmc08gt <brandon.mcansh@gmail.com>
update sepolicy to align with aosp
update selinux to match hammerhead from aosp
Set -DNEEDS_VECTORIMPL_SYMBOLS for legacy vector symbols

Signed-off-by: bmc08gt <brandon.mcansh@gmail.com>