Fix compilation errors in LE for changes in adding DataItemObserver interface in SystemStatus. Change-Id: I7f2987672818d9f4ff9db801b55ade6fcdfd9a7d CRs-Fixed: 2081242
Change-Id: Idca694fe0cf640c5bf255fa11ff206d6927d67be
Change-Id: I35b8da213e8830456c8652802941a418748bd5e9 CRs-Fixed: 2067662