WifiStaApConcurrencyTest] Fix flaky test cases

CHERRY PICKED CHANGES FROM git_master

[WifiStaApConcurrencyTest] Fix flaky test cases

Bug: 150661714
Test: Verified the changes
Change-Id: I5957da59e1b415c0a6c629006fbd1dcce3f167db
1 file changed
tree: b70da0e5ee077b2cebe1acde352cc1dd3ea1be04
  1. acts/
  2. tools/
  3. wts-acts/
  4. Android.mk
  5. OWNERS
  6. PREUPLOAD.cfg