Add VK_ACCESS_SHADER_READ_BIT barrier access bit

Add VK_ACCESS_SHADER_READ_BIT barrier access bit

The dEQP-VK.query_pool.statistics_query.compute_shader_invocations.secondary*
tests were missing a VK_ACCESS_SHADER_READ_BIT bit in the
pipeline barrier between compute dispatch calls. Each dispatch
was doing a read-modify-write of the same SSBO locations, but
the test only used the VK_ACCESS_SHADER_WRITE_BIT access bit.
This may cause the compute shader to read stale cache data
since the dependency between each dispatch was not expressed
correctly.

This fix simple adds the missing VK_ACCESS_SHADER_READ_BIT
access bit.

Affects:
dEQP-VK.query_pool.statistics_query.compute_shader_invocations.secondary*

Components: Vulkan

VK-GL-CTS issue: 927

Change-Id: I946d6113c897a03116db7a93a182e27497adfe6f