Those tribes are known, who are Pashtunized but are not part of lineage tree of Pashtuns. There is no Pashtun tribe which has dardic roots, but yea pashtunized people of dardic origin do live among Pashtuns in north. Also Kohistanis are dardic and they are neighbors to yusufzais. Chitralis are also dardic and they are neighbors to Dirojen Pashtuns. In Afghanistan dardic people of Nuristan are neighbor to Pashtuns. Keep in mind that the Khashi confederation of tribes (yusufzais, mohamnds, khalils, gagianis, jaduns etc) arrived in peshawer valley , bajaur and malakhand division in early 16th century........so they are neighbors to dardistan for only 5 centuries.
Perhaps you have not read the pages i posted about khiljis........read it, it will clear some things about them to you....