Vulkan: Use shader stage specific barrier

Followup fix for copy/paste error that ImageLayout::GeometryShaderReadOnly was using VK_PIPELINE_STAGE_VERTEX_SHADER_BIT

Bug: angleproject:4467
Change-Id: I5be7f800177c4f36a334f1cc75f876e271ca22b1
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2133089
Reviewed-by: Jamie Madill <[email protected]>
Reviewed-by: Tim Van Patten <[email protected]>
Commit-Queue: Jamie Madill <[email protected]>

Author: nico

src/libANGLE/renderer/vulkan/vk_helpers.cpp

@@ -180,8 +180,8 @@ constexpr angle::PackedEnumMap<ImageLayout, ImageMemoryBarrierData> kImageMemory
         ImageLayout::GeometryShaderReadOnly,
         {
             VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
-            VK_PIPELINE_STAGE_VERTEX_SHADER_BIT,
-            VK_PIPELINE_STAGE_VERTEX_SHADER_BIT,
+            VK_PIPELINE_STAGE_GEOMETRY_SHADER_BIT,
+            VK_PIPELINE_STAGE_GEOMETRY_SHADER_BIT,
             // Transition to: all reads must happen after barrier.
             VK_ACCESS_SHADER_READ_BIT,
             // Transition from: RAR and WAR don't need memory barrier.