Fix end of Renderpass synchronization hazards

Fix end of Renderpass synchronization hazards

The implicit subpass dependency at the end of a renderpass has
dstStageMask set to VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, which
prevents forming a dependency chain with specific pipeline stages.

To synchronize commands with vkCmdEndRenderPass, use either an
explict external subpass dependency or a pipeline barrier with
srcStageMask set to VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT.

VK-GL-CTS Issue: 2695

Affected tests:

dEQP-VK.pipeline.multisample.sample_locations_ext.*
dEQP-VK.renderpass.suballocation.attachment_sparse_filling.*
dEQP-VK.renderpass.suballocation.subpass_dependencies.*
dEQP-VK.renderpass2.suballocation.attachment_sparse_filling.*
dEQP-VK.renderpass2.suballocation.subpass_dependencies.*

Components: Vulkan

Change-Id: I1b33c128dfdc54705f953f044db9acf1ff6e63e9