commit b8572fec1d81c403abc45f573619b8812e64fa30
Author: Ingo Korb <ingo@akana.de>
Date:   Tue May 4 14:31:15 2021 +0200

    raise CONFIG_MAX_PARTITIONS to at least 4 in all configs
    
    For consistency, set CONFIG_MAX_PARTITIONS in all configs to 4 where
    it had a lower value before.