[automerger skipped] DO NOT MERGE Add sleep(3) after stopSupplicant when VtsHalWifiSupplicant am: ca07893589 -s ours am: 8adb4f6581 -s ours am: ad6c07e4c8 am: 1d251753e7 -s ours am: a635038c52 am: 7e6e5b3d1c -s ours am: be02c246c9 -s ours

am skip reason: subject contains skip directive

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1478060

Change-Id: I4e28bca28537cc00126bc5d549dd0e30469a1477