* SWDEV-520352 - Remove HostThread and legacy monitor
Remove HostThread, semaphore and legacy monitor.
Make original logics of thread and command queue stricker.
Add more comments to make logics clearer.
Some other minor improvement.
Also part of SWDEV-458943.
[ROCm/clr commit: 96cadbc9e9]
This should be used in place of dlsym or GetProcAddress (linux and windows respectively)
Change-Id: I5501b538e03892e8e5a2282678d848fcaf21d911
[ROCm/clr commit: 0479cdb3dd]
making sure the current thread is not null before calling ihipDestroyDevice
Change-Id: Ib75e3f9ee1c4e0065986e3fed1065907220f4379
[ROCm/clr commit: c221406681]
Sang, Tao
jiabaxie
Anusha GodavarthySurya
pghafari
haoyuan2