Merge "vts: Use global hostapd_ since teardown will call terminate function" am: 77c3b52888 am: 7ce0280a4d am: c663e086fd

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1436771

Change-Id: Ie115c353c00de1ed166c0bc34ad608a271493fb6