Fix incorrect layout transition in modifier tests

The queue family ownership acquire operation specifies a layout
transition from the pre-initialized layout. The image isn't in the
pre-initialized layout however, it's in the transfer dst optimal layout.
Align with the Vulkan spec, which says:

	When performing a layout transition on an image subresource, the
	old layout value must either equal the current layout of the
	image subresource (at the time the transition executes), or else
	be VK_IMAGE_LAYOUT_UNDEFINED (implying that the contents of the
	image subresource need not be preserved).

Components: Vulkan

VK-GL-CTS issue: 3575

Affects: dEQP-VK.drm_format_modifiers.export_import.*
Change-Id: I76dbb54c699ed7d34e964de17f71ef01bc9e98a5
diff --git a/external/vulkancts/modules/vulkan/modifiers/vktModifiersTests.cpp b/external/vulkancts/modules/vulkan/modifiers/vktModifiersTests.cpp
index aef72f6..9a97ccd 100644
--- a/external/vulkancts/modules/vulkan/modifiers/vktModifiersTests.cpp
+++ b/external/vulkancts/modules/vulkan/modifiers/vktModifiersTests.cpp
@@ -620,7 +620,7 @@
 		DE_NULL,									// const void*				pNext;
 		VK_ACCESS_TRANSFER_WRITE_BIT,				// VkAccessFlags			srcAccessMask;
 		VK_ACCESS_TRANSFER_WRITE_BIT,				// VkAccessFlags			dstAccessMask;
-		VK_IMAGE_LAYOUT_PREINITIALIZED,		// VkImageLayout			oldLayout;
+		VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,			// VkImageLayout			oldLayout;
 		VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,			// VkImageLayout			newLayout;
 		VK_QUEUE_FAMILY_FOREIGN_EXT,					// deUint32					srcQueueFamilyIndex;
 		context.getUniversalQueueFamilyIndex(),			// deUint32					dstQueueFamilyIndex;