Use the hostapd_test_utils helper methods in am: c6cacf61 am: b2d1a3b4 am: 9af8f6c1

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/24589850



Change-Id: I84eab9ee6d749d1936ac81020f0ba6ec9d685f56
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>