le_scanning_manager: Pass handle for PAST to avoid address issues

Requesting transfer sync or transfer set info a pseudo address may be
ussed for privacy using devices. ACL connections list keeps for the
first connection a pseudo address but after reconnection it uses a
identity addres. Upper layers like Broadcast Assistant etc. always uses
pseudo address. To avoid logic extension in stack, passing acl handle
to scan manager avoids missmatch with addres type vs handle.

Tag: #feature
Bug: 301555718
Test: atest LeScanningManagerAndroidHciTest
Change-Id: If1cc76923d78a118423bd4ad23d6833f5b5e261f