Adds a check for the BT_LE_FEAT_BIT_PER_ADV bit for each
function related to periodic advertising, including sync and
PAST transfer.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Refactor out the scan roles handling from hci_core.c to its own source
file in scan.c.
Scan roles consists of regular scanning and synchronization to
periodic advertiser.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
