Make sure that BootJars is super set of ArtApexJars

When constructing the dexpreopt config it will strip out any entries in
ART_APEX_JARS which are not present in PRODUCT_BOOT_JARS and store the
remainder in ArtApexJars.

Bug: 185391652
Test: lunch sdk_phone_x86_vendor && m nothing
      lunch sdk_phone_x86 && m nothing
Change-Id: I403ef9768a8ac2d222bbd6cfd0a68a2019f67c16