Allow false positive hits from build-in AABBs intersector

Allow false positive hits from build-in AABBs intersector

This change allows the test to execute any hit shader,
in case of AABB geometry is used and the ray falsely 'intersects'
it.

This is needed, as the test does not calculate the proper
intersection in 'intersection' stage - it uses a shader that always
reports TRUE. Hence the test relies on build-in AABB
intersector, which may report false positives according to the
specification.

VK-GL-CTS Issue: 2848

Components: Vulkan

Affects: dEQP-VK.ray_tracing_pipeline.build.*aabbs*

Change-Id: Ib90f45227a7cd4c412fd4d1c97598f32a80eb6ca