Fix CTS test case failure test_isReachableLjava_net_NetworkInterfaceII

The IP address '1.1.1.1' specifed in the test case is not guaranteed to
be unresolvable. Updating the address to use one of the IP addresses
specified in the 'IPv4 Address Blocks Reserved for Documentation':
https://tools.ietf.org/html/rfc5737

Bug: 34755694
Test: Run the following CTS command -
run cts -m CtsLibcoreTestCases -t org.apache.harmony.tests.java.net.
InetAddressTest#test_isReachableLjava_net_NetworkInterfaceII
Change-Id: Iaf5789e50a5bf356de1fe29d889f6de48dc15451
(cherry picked from commit 0516f392)