move PRIVATE/SHARED/MANDATORY/OPTIONAL/{LOAD,IGNORE}_ON_* into core headers am: 10da6d4e61 am: 32fdebb277 am: 0f655a39a0 am: 9df357fb79

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2777124

Change-Id: I6b51698b2b692230b8e12228b57715c556e9f254
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>