NetBpfLoad: simplify location argument to loadProg() am: 4c7f59f8f4

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3221271

Change-Id: Ie3e276d985d638d22cb891154387dc10638a982f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>