anv/android: set ANV_BO_ALLOC_EXTERNAL for imported AHW

This fixes some cacheline flush artifacts

Signed-off-by: Juston Li <justonli@google.com>
Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29882>

src/intel/vulkan/anv_android.c

@@ -307,7 +307,8 @@ anv_import_ahw_memory(VkDevice device_h,
    if (dma_buf < 0)
       return VK_ERROR_INVALID_EXTERNAL_HANDLE;
 
-   VkResult result = anv_device_import_bo(device, dma_buf, 0,
+   VkResult result = anv_device_import_bo(device, dma_buf,
+                                          ANV_BO_ALLOC_EXTERNAL,
                                           0 /* client_address */,
                                           &mem->bo);
    assert(result == VK_SUCCESS);