Fix stageMask (0x1) usage in binding_model and glsl tests
Pipeline barriers using PIPELINE_STAGE_TOP_OF_PIPE_BIT with nonzero
access mask were modified to use proper pipeline stage flags.
Memory barrier structure members were renamed to match the current
specification.
Affects:
dEQP-VK.binding_model.*
dEQP-VK.glsl.derivate.*.texture.*
dEQP-VK.glsl.discard.*_texture
dEQP-VK.glsl.texture_functions.*
dEQP-VK.glsl.texture_gather.*
dEQP-VK.glsl.builtin_var.fragdepth.*
dEQP-VK.glsl.builtin.*
dEQP-VK.glsl.opaque_type_indexing.*
dEQP-VK.glsl.atomic_operations.*
VK-GL-CTS issue: 806
Change-Id: Ia223039abed5c4b15ae004fbaa9fba1ebe92056e