WifiNetworkSpecifierTest: Remove double quotes from preSharedKey

Legacy WifiConfiguration.preSharedKey is double quoted (similar to
SSID).

Bug: 152264590
Test: atest android.net.wifi.cts.WifiNetworkSpecifierTest --rerun-until-failure
Change-Id: Id139537f07efec4e1b49cda29b2ed9e9f40fb22f
1 file changed
tree: 0e5f89663b3141ad144440a2faa2b999adabc07c
  1. tests/