ROCm 1.6.0 release

Optimize map lookups for kernel/buffer deps for array_view.

First call "find", avoids insert (from []) and then removal
in cases where kernel does not have any array_view deps.

Merge pull request ROCm#355 from aaronenyeshi/clang_tot_upgrade

Fixes testcases for no peer accelerators

Before merging the clang_tot_upgrade-alloca branch

Fix floating point exception due to empty kernel

Empty kernel has workitem_vgpr_count equal 0, which cause floating point exception in mcwamp_hsa.cpp when calculating
max_num_work_items_per_cu. The fix is let it be 1.

Fix floating point exception due to empty kernel

Empty kernel has workitem_vgpr_count equal 0, which cause floating point exception in mcwamp_hsa.cpp when calculating
max_num_work_items_per_cu. The fix is let it be 1.

Fix floating point exception due to empty kernel

Empty kernel has workitem_vgpr_count equal 0, which cause floating point exception in mcwamp_hsa.cpp when calculating
max_num_work_items_per_cu. The fix is let it be 1.

Add tag result-11

Add tag result-10

[Config] revise submodule configuration