Bluetooth: Fix accepting connections when not using mgmt

Bluetooth: Fix accepting connections when not using mgmt

When connectable mode is enabled (page scan on) through some non-mgmt
method the HCI_CONNECTABLE flag will not be set. For backwards
compatibility with user space versions not using mgmt we should not
require HCI_CONNECTABLE to be set if HCI_MGMT is not set.

Reported-by: Pali Rohár <[email protected]>
Tested-by: Pali Rohár <[email protected]>
Signed-off-by: Johan Hedberg <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
Cc: [email protected] # 3.17+