Update VTS test to work with per-technology observe mode command

Bug: 383696666
Test: fixing test
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:589cb0c0ad74a4974c0249868b5a62250b106d0f)
Merged-In: Ia243f6ccfd373c850ed9e5dc42bd5dd3b3d15f28
Change-Id: Ia243f6ccfd373c850ed9e5dc42bd5dd3b3d15f28
1 file changed