restructure device tree and remove unused files

Change-Id: I5e392b1f71bade3cbf35ad5fefbfa2c05d1e429a
move properties to system.prop

Change-Id: I9a96b61b131ebf2af55cd3d9a7d1968679baccfe
device.mk: cleanup

Change-Id: I4f1ddf88f14944d911b8850d64ee8f432dc482b1
BoardConfig: cleanup

Change-Id: Ieeb0b8c0014b08b683f0028f916283ddc4946413
add time_daemon and gps configs

Change-Id: Ie0ea5ef9f874b9dcbc125ee2893e5e6ef6240ed1