provisioner remove dependency of marco BLE_MESH_CDB

[gavin-yy]

currently the provisioner feature depends on marco BLE_MESH_CDB. This dependency seems not be expected ?
This commit is trying to remove this dependency. Then the shell demo for linux as a mesh provisioner role without BLE_MESH_CDB and BLE_MESH_SETTINGS works.

BTW, BLE_MESH_CDB depends on BLE_MESH_SETTINGS, if BLE_MESH_SETTINGS is not enabled, it cause compiling error.
static void schedule_cdb_store(int flag)
{
atomic_set_bit(bt_mesh_cdb.flags, flag);
bt_mesh_settings_store_schedule(BT_MESH_SETTINGS_CDB_PENDING);
}
nimble/host/mesh/src/cdb.c:545: undefined reference to `bt_mesh_settings_store_schedule'

[sjanc]

syscfg.yml and pkg.yml are mynewt specifics, those are not needed for linux port (as this is build with make)

[gavin-yy]

The coding style checking progress seems have some problem...

it print some errors according above links, it runs without problem in my local repo when pushing commit :

Run ./repos/apache-mynewt-core/.github/check_style.py
Option: at uncrustify.cfg:147: Expected number , for 'indent_shift'; got 'false'
uncrustify.cfg:186: option 'indent_sing_line_comments' is deprecated; did you want to use 'indent_single_line_comments_before' instead?
Option: at uncrustify.cfg:231: Expected number , for 'indent_comma_paren'; got 'false'
Option: at uncrustify.cfg:234: Expected number , for 'indent_bool_paren'; got 'false'

[sjanc]

looks like we need to update uncrustify config (probaly ubuntu-latest on gihub was bumped)