NetBpfLoad: reduce log level for some messages am: dbdd90fb31

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3237701

Change-Id: I4b4f088be4debbcd9c3af572c5ec88248c9305be
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>