…ocket

To avoid a compiler warning about the fall-through.

This lets the device be forcibly reset to a specific network type by the
companion software wallet.  This command is *only* permitted when the
wallet is compiled in debug mode.

This also allows putting the wallet into fakechain mode, which is needed
for network tests, and allows doing so without needing (or exposing) a
fakechain setting.

Fixes various Ledger display messages that confusing reference LNS
instead of ONS.  This also changes all the constants along the way (to
make it consistent with the Oxen core code, which renamed them as such a
long time ago).

0x200 hurts nothing on non-X, and 0x40 should be there on X for
being able to request PIN verification.  (This also matches the flags
used, now, in the Monero app and various other official apps).

This was necessary in older Nano S SDK, but apparently isn't needed
anymore.