1.Remove clock functions from some tests that don't need them.
2.In some memory pool tests and coherency tests, timer-based kernel
delay isn't reliable, use pinned host based notification instead.
3.Add CHECK_PCIE_ATOMICS_SUPPORT before some tests.
4.catch/unit/memory/hipMemoryAllocateCoherent.cc is removed
as it is useless and originally excluded in building.
5.Some tests can still pass even if clock rate =0, thus they
will be kept as is.
6.Some logic and format improvement in some tests.
Change-Id: I6b3c6bf54c61cffd45cd6f17c75998f751b75725
[ROCm/hip-tests commit: ec8ff45a1d]
Having same target name causes same includes to be called twice
Change-Id: I53469a07e6dee375ea4a4700ccac3c9487b79e4a
[ROCm/hip-tests commit: c03ad253fd]
systems-assistant[bot]
Danylo Lytovchenko
Luo, Phoebe
Sang, Tao
Ioannis Assiouras
Ajay
Branislav Brzak
mbhiutra