Fix CTS test failure for WifiConnectedNetworkScorer in DBS mode

In DBS mode, some of the link layer stats (e.g., radio on time) on one radio could be exactly zero when
WiFi connection is using the other radio.  Allow zero values in the CTS test for link layer stats.

Bug: 161262848

Test: atest android.net.wifi.cts.ConnectedNetworkScorerTest

Signed-off-by: Mingguang Xu <mingguangxu@google.com>
Change-Id: I0b8ff7563a485beea9398cf96c23e3e38cef1c23
(cherry picked from commit 7804ea86d2499d1441789007e67f3acfe09917d3)
1 file changed