Add non system overlay flag to RequestManageCredentials

Bug: 205150380
Test: Manual testing with Settings and TestDPC
Change-Id: I7c23442e143a6d74935945e6f5e4ce5ce0ef77f0
Merged-In: I7c23442e143a6d74935945e6f5e4ce5ce0ef77f0
1 file changed