vts(wifi): Stop wifi fully instead of stopping framework am: 87423904 am:...

vts(wifi): Stop wifi fully instead of stopping framework am: 87423904 am: 356437d4 am: 4df2e04a

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15847168

Change-Id: I75d2e814c5bd9b1ee78f6321f8d849e1d7bf5045