dev-amdgpu: Removed hardcoded AQL queue size
dev-amdgpu: Removed hardcoded AQL queue size

The AQL queue size is currently hardcoded to 64kB. For longer running
applications this causes the circular queue to wrap before reaching the
real end of the queue. Add the computation for queue size instead.

Previously longer applications (e.g., bc in pannotia) were hanging
around 4k kernels. With change the application launches 10k+ kernels.

Change-Id: I6c31677c1799a3c9ce28cf4e7e79efcb987e3b7f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/59449
Maintainer: Jason Lowe-Power <92de577f37050ad05b60626d2f17913f40dcb1a2@gmail.com>
Reviewed-by: Jason Lowe-Power <92de577f37050ad05b60626d2f17913f40dcb1a2@gmail.com>
Maintainer: Matt Sinclair <d2406197fb1bedd1e23c70c50c510ff0e9ab0f5b@gmail.com>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Reviewed-by: Matt Sinclair <d2406197fb1bedd1e23c70c50c510ff0e9ab0f5b@gmail.com>

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