[automerger skipped] DO NOT MERGE Add sleep(3) after stopSupplicant when...

[automerger skipped] DO NOT MERGE Add sleep(3) after stopSupplicant when VtsHalWifiSupplicant am: ca078935 -s ours am: 8adb4f65 -s ours am: ad6c07e4 am: 1d251753 -s ours am: a635038c am: 7e6e5b3d -s ours am: be02c246

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

Change-Id: I48091f270caab9cbe4dc22fd20970b33f7e9d3d7