Remove verity blocks from care map

When reading /dev/block/dm-X, update_verifier isn't able to access the
verity meta blocks at the end of the system/vendor partition. So we need
to remove these block ranges from the care_map.

Bug: 34391662
Test: care_map generated successfully without verity meta blocks
Change-Id: Id57c602b7e5fd1b0c9d1e1fe5fcdd74e85b6b255