Camera2: Fix trying to release HAL stream twice

When we fail to disconnect the native window, StreamAdapter::release
would fail and remain in the old (ALLOCATED) state, thus it thinks that
we haven't released the HAL stream yet.

With this change, ignore DEAD_OBJECT native window disconnect failures,
so the state transitions to RELEASED and we don't double release HAL
streams.

Bug: 7258314
Change-Id: I524893e4b4d6463d7b0a7ce32fb6f658afba8e11