nfc: nci: assert requested protocol is valid

The protocol is used in a bit mask to determine if the protocol is
supported. Assert the provided protocol is less than the maximum
defined so it doesn't potentially perform a shift-out-of-bounds and
provide a clearer error for undefined protocols vs unsupported ones.

Fixes: 6a2968aa ("NFC: basic NCI protocol implementation")
Reported-and-tested-by:  <syzbot+0839b78e119aae1fec78@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=0839b78e119aae1fec78


Signed-off-by: Jeremy Cline <jeremy@jcline.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20231009200054.82557-1-jeremy@jcline.org


Signed-off-by: Paolo Abeni <pabeni@redhat.com>