Floss: Plumb suspend id from powerd to suspend

Needed to plumb the suspend_id from powerd all the way to the suspend
function in the suspend.rs module.  Then we have access to the suspend
id.

Also, convert the types from u32 to i32 to match the protobuf

Bug: 231570916
Test: ./build.py
Test: mma -j $(nproc)
Test: system/gd/cert/run --topshim
Tag: #floss
Change-Id: Id71ee50035441320e477b2d8f805a73e5edd696a