tests: Fix UpdateBufferWithinRenderPass
tests: Fix UpdateBufferWithinRenderPass

Change-Id: I25815aa9e09bd8f2a5f2e485ecbbcbed9dcb8275

KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers