Move the network buffer header file from zephyr/net/buf.h to
zephyr/net_buf.h as the implementation now lives outside of the networking
subsystem.
Add (deprecated) zephyr/net/buf.h header to maintain compatibility with old
file path.
Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
Unit test project for bt_pub_key_gen().
This is part of subsys/bluetooth/host/ecc.c unit testing.
Signed-off-by: Ahmed Moheb <ahmed.moheb@nordicsemi.no>