lights aidl: Add required @Rust derive statements

The new LightsService example is written in Rust and is being expanded
to include a state as part of the service. This required that HwLight
and HwLightState derived from the Copy and Clone traits, so here we are
updating the AIDL Rust bindings.

This is not an API change, so in order to avoid having to bump the AIDL
API version for this HAL we used the hash_gen.sh script as below:

$ m android.hardware.light-update-api
$ m android.hardware.light-freeze-api

$ vim light/aidl/Android.bp # removed frozen_api argument and the newly
created version 3 block

$ cp -r aidl_api/android.hardware.light/3/* aidl_api/android.hardware.light/2/
$ rm -rf aidl_api/android.hardware.light/3/

$ ./system/tools/aidl/build/hash_gen.sh  \
      hardware/interfaces/light/aidl/aidl_api/android.hardware.light/2/  \
      1  \
      hardware/interfaces/light/aidl/aidl_api/android.hardware.light/2/.hash

Tested: Verified that the build is passing and used with the next CL.
Bug: 286106270
Change-Id: I1400ec1db1e75595176a5656d6688df9457153d4