Adds custom annotation macro defines to enable building the client.annotation-concurrency executable and its shared library on AArchXX.
Enables the 4 tests that require that executable, but do not need annotation support: tool.drcachesim.threads, tool.drcachesim.threads-with-config-file, tool.drcachesim.coherence, and tool.drcachesim.TLB-threads.