Merge "Only renew/rebind valid prefixes at ReacquireState." into main am: d2888426b2 am: 2358dc1139

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/2846094

Change-Id: Ided95aa7761d9645e61a44744be51efecf0e92bd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>