Move test apks from `required` to `data`

The `required` is inherited from Make and is very vague. It's discouraged by Android Build team to use it. But PermissionUiTestCases and SafetyCenterConfigTests declare test apks in the `required` property, so that this change moves those test apks to the `data` property.

Bug: 243493884
Test: atest PermissionUiTestCases SafetyCenterConfigTests
Change-Id: I9b1b9939093374a9fcc9e2d961db51bc229ec0c0