This is false and never happened. Mizrahi Jews colonized Palestine under the banner of Zionism. Despite holding a lower social position in Israel than Ashkenazis, they are still colonizers.
If the Arab states think the Palestinians deserve reparations for stolen land, then obviously the Mizrahi Jews deserve multiples of those reparations.
If the Arab states think they can avoid paying reparations for the land they stole just by taking Israel by force, well they tried that several times and failed already.