When swapchain images were being destroyed on Android,
the backing memory was not being destroyed, causing a crash.

Tests: dEQP-VK.wsi.android.swapchain.create.min_image_count

Bug: 133346002
Change-Id: Ib2383a6c41ac2917f6e6630eca96e5c180996507
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/31870Reviewed-by: Chris Forbes <chrisforbes@google.com>
Tested-by: Hernan Liatis <hliatis@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>