The negative queue tests generate an exception which triggers a coredump
generation. Disable RLIMIT so that the coredumps are not generated for
these tests.
In several places aql packets were written to queue all at once
instead of doing the header atomically. These cases have been
fixed.
There were a few hsa_signal leaked that have been addressed.
There was some duplication of code that has been addressed.
Addresses ROCMOPS-456
Change-Id: Ia1869bc370f92e49ac560301df47741d5f76978e