Added utils for migrating blocking zone configs to DDC

Bug: 193892229
Test: atest DisplayDeviceConfigTest DisplayModeDirectorTest
Merged-In: I27b3865fb4c4ea455fcf3594c3b778a8e592f949
Change-Id: Idac3fe16e583b84ca7b3e30dd20ce561c1c12a15
5 files changed