Fix PIPELINE_STAGE_TOP_OF_PIPE_BIT usage in api tests

Fix PIPELINE_STAGE_TOP_OF_PIPE_BIT usage in api tests

Test cases using PIPELINE_STAGE_TOP_OF_PIPE_BIT with nonzero access
mask were modified to use proper pipeline stage flags.

The dstAccessMask mask of a buffer memory barrier created by
ComputeInstanceResultBuffer class was changed from
VK_ACCESS_SHADER_WRITE_BIT to VK_ACCESS_HOST_READ_BIT to better
represent its usage.

Memory barrier structure members were renamed to match the current
specification.

Affects:

dEQP-VK.api.buffer_view.access.*
dEQP-VK.api.command_buffers.render_pass_continue
dEQP-VK.api.command_buffers.order_bind_pipeline
dEQP-VK.api.copy_and_blit.core.image_to_buffer.*
dEQP-VK.api.copy_and_blit.core.buffer_to_buffer.*
dEQP-VK.api.copy_and_blit.dedicated_allocation.image_to_buffer.*
dEQP-VK.api.copy_and_blit.dedicated_allocation.buffer_to_buffer.*

VK-GL-CTS issue: 806

Change-Id: Ifaff60b1cd615889fa4b1fc175a78bdbc00be50c