core: pm: Use checkRequiredSystemProperties from FrameworkParsingPackageUtils

The code in FrameworkParsingPackageUtils was added in efbb3196 and
copied from ParsingPackageUtils in services.jar

At that point in time there was already a duplicated implementation but
in 2 different jars, but after that change they now both live in framework.jar

Let's migrate to the FrameworkParsingPackageUtils implementation
as that's already used elsewhere in framework.jar

Test: m, refactoring
Change-Id: Icd816d59fbe9d0070167c526e52c3b4e172f412b