[ET-VK] Request VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT, not RANDOM (#7615)

* [ET-VK] Request VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT, not RANDOM

* fix lint

Author: swolchok

backends/vulkan/runtime/vk_api/memory/Allocator.cpp

@@ -151,7 +151,8 @@ VulkanBuffer Allocator::create_staging_buffer(const VkDeviceSize size) {
   // Staging buffers are accessed by both the CPU and GPU, so set the
   // appropriate flags to indicate that the host device will be accessing
   // the data from this buffer.
-  alloc_create_info.flags |= VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT |
+  alloc_create_info.flags |=
+      VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT |
       VMA_ALLOCATION_CREATE_MAPPED_BIT;
   alloc_create_info.usage = VMA_MEMORY_USAGE_AUTO_PREFER_HOST;
   alloc_create_info.requiredFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;