Zephyr: Unable to reconnect paired devices with controller privacy disabled (host privacy enabled)

[mtpr-ot]

Description
With host privacy enabled and controller privacy disabled, it is not possible to re-connect to a paired device.

To Reproduce
_Preconditions:_
CONFIG_BT_PRIVACY=y
CONFIG_BT_CTLR_PRIVACY=n

Peripheral advertises constantly. Central scans, connects, disconnects and then scans and finally attempts to re-connect. At second attempt:

• Scanner scans for ADV packets, sees our peripheral by random address and sends scan report
• In the host layer, the advertiser address is looked up and a key is found
• The random address is translated to public address and app is notified
• The app takes the public address of the advertiser and initiates a connection
• The scanner receives connection information containing the public address
• Scanner waits forever for a match between received random address and the public address from app

Expected behavior
Central and peripheral should connect every time.

Impact
Unable to connect after devices have paired.

Environment (please complete the following information)

• Zephyr 2.0 RC1

[aescolar]

@joerchan This seems like a regression. But please remove the label if it is not.

[joerchan]

Yes, regression from here: 45da629b24f720019355fca8e1ddddb798ac409f