drivers: sensor: Convert fxos8700 to new gpio api

Converts the fxos8700 sensor driver to the new gpio api. Updates device
trees for all boards with this sensor to active low gpio interrupts by
default.

Tested on frdm_k64f and rv32m1_vega_ri5cy boards. The latter verifies
that the reset output works correctly.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
17 files changed