libbinder_ndk: Shim llndk-versioning on Trusty

Trusty does not provide the llndk-versioning.h header,
so work around it by providing a no-op alternative to
__INTRODUCED_IN_LLNDK

Bug: 242243245
Test: build Trusty
Change-Id: I9e13eb3d890d7cf4183468b822e4d5e4f9939006