Wipe sensitive data on entry deletion

Add a --verbose parameter to print all USB packets at the OpenSK level.

Check nrfutil version.

adding HMAC-secret support

Sync upstream kernel to get more reproducible builds.

Revamp deploy.py

Now the script supports more flashing methods:
- JLink (with tockloader)
- OpenOCD (with tockloader)
- pyOCD
- Nordic DFU
- none (will produce an IntelHex file)

Also merged the contributions from:
- Yihui Xiong to support the Makerdiary USB dongle board
- Dennis Geurts to support Nordic DFU

Doc updated accordingly.

Imported 2 patches for Tock kernel:
- 06-add-set_vector_table_offset.patch (upstream tock/tock#1579)
- 07-nrf52-bootloader.patch (upstream tock/tock#1681)

Sync patches with upstream Tock.

When inserting (or replacing) entries in the store, the data may be marked as
sensitive. When that entry is deleted, the data is wiped by overwritting it with
zeroes. This may cost a few bytes of overhead per entry with sensitive data to
satisfy the constraint that words may only be written twice.

Add patch for bidirectional USB endpoints to fix panics in case of cancellation.