boards/up_squared: soc/apollo_lake: devicetree default to status="ok"

Since Kconfig is responsible for enabling/disabling devices at build,
the devices in dt are defaulted to status="ok" to keep the output in
generated_dts_board.conf the same across configurations and simplify
the board-level dts files.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>