bpfloader: 4.19+ required error message "Android V" -> "Android U QPR2" am: 0156d6e2ba am: 6d37008f7f

Original change: https://android-review.googlesource.com/c/platform/system/bpf/+/2751705

Change-Id: I6f0b94c7782fd71b04770347b7ead1531f2a5d4b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>