Add foldables posture based closed device state

Updates FoldableDeviceStateProvider to prefer
using hall sensor instead of hinge angle sensor
when possible.

Hall sensor usually has much lower latency
of detecting unfolding compared to hinge angle
sensor, so it could reduce total unfold latency
by ~100ms.

This is done by estimating the position of the device
(e.g. if it is likely in tent/wedge mode then use
hinge angle sensor to switch at 90 degrees and
switch immediately using hall sensor otherwise).

Bug: 309792734
Test: manual testing
Test: atest TentModeDeviceStatePolicyTest
Flag: ACONFIG enable_foldables_posture_based_closed_state DISABLED
Change-Id: Ic823326f2d81af6ab1b1891bebc06537215ffce4