bpfloader: sleep 20 seconds on failure

(should make it easier to observe logs via adb)

Test: atest, TreeHugger
Bug: 150040815
Bug: 160546011
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I20d6ede4ddf516a91c707aa08cf3a92aed39b03b
1 file changed
tree: d45adc05840e9ce7e3327647612a83ef9c1b9c66
  1. bpfloader/
  2. libbpf_android/
  3. progs/
  4. Android.bp
  5. NOTICE
  6. OWNERS
  7. PREUPLOAD.cfg