rders the initialization to be easier to understand.
First the memory is initialized, then all generic structures and as last
step the sub-init functions are called. This guarantees that all
dependencies are initialized in the right order and makes it also easier
to find a specific line. We previously initialized it in the same order as
the "struct hci_dev" is declared which seems pretty random.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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