Bluetooth: hci_sync: Convert MGMT_OP_SET_ADVERTISING

mgmt-test paths:
Set powered on - Privacy and Advertising
Set Advertising on - Success 2
Set Advertising on - Appearance 1
Set Advertising on - Local name 1
Set Advertising on - Name + Appear 1
Add Advertising - Success 4
Add Advertising - Success 5
Add Ext Advertising - Success 4
Add Ext Advertising - Success 5

Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>