libvulkan: Fix missed vkAllocateCommandBuffers renames

Change-Id: Ic3fee0d565009327f524084b14da498c8412155f
(cherry picked from commit 3b8513e831673417af2ad79baa6c73710742fa0f)
diff --git a/vulkan/libvulkan/loader.h b/vulkan/libvulkan/loader.h
index 1f777fc..e007f8d 100644
--- a/vulkan/libvulkan/loader.h
+++ b/vulkan/libvulkan/loader.h
@@ -220,9 +220,9 @@
                     uint32_t family,
                     uint32_t index,
                     VkQueue* out_queue);
-VkResult AllocCommandBuffers(VkDevice device,
-                             const VkCommandBufferAllocateInfo* alloc_info,
-                             VkCommandBuffer* cmdbufs);
+VkResult AllocateCommandBuffers(VkDevice device,
+                                const VkCommandBufferAllocateInfo* alloc_info,
+                                VkCommandBuffer* cmdbufs);
 VkResult DestroyDevice(VkDevice drv_device,
                        const VkAllocationCallbacks* allocator);