Merge "Allow MANAGE_TEST_NETWORKS to register and get VCN policies." am: 7b02279e0a am: 9a83740d0e am: c3b6259903

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1719273

Change-Id: Ie09bd084ee217a70771239917b2ca4d86062670e