Messaging: Add sysconfig whitelist xml

Issue: FP2P-589
Change-Id: I2665ac3be3bb63daeaa0e5c109b73ca6152b95ce
(adapted from https://github.com/LineageOS/android_packages_apps_Messaging/commit/774b8d55d2a36677be856c602c5383dd347c160d.patch)
2 files changed