Fix time limit for testWifiScanTimestamp.

By default, a CTS test case has 300-seconds time limit.
However,

* Line #299 (setUp) of
 android.googlesource.com/platform/cts/+/android11-tests-dev/\
 tests/tests/wifi/src/android/net/wifi/cts/WifiManagerTest.java
 waits up to 10 seconds
* Line #336 (tearDown) waits for 10 seconds.
Then during the 5-time iteration of the test case,
* Line #382 (startScan) waits upto 9 seconds, expecting 8 seconds (#82).
* Line #555 (test iteration) waits for 60 seconds except at the last iteration.

So, a valid run can timeout: 10 + 10 + 5*8 + 4*60 = 300.
This CL extends the timelimit with some margin.

Bug: 172886493
Test: android.net.wifi.cts.WifiManagerTest#testWifiScanTimestamp
Change-Id: I89d53c96a487f59b336888a794f430cc576a74d3
(cherry picked from commit a32845d7221c21c6e60653248cdbd1f4d31c09fa)
1 file changed