Allow SSLSession to return IP address
Allow SSLSession to return IP address

In an effort to not use reverse DNS, we no longer return hostnames from
sockets created via IP addresses. However, this also made the SSLSession
return null when a Socket is created to an IP address instead of an
FQDN.

While being careful not to trigger another DNS lookup, simply return a
textual representation of the IP address connected when the SSLSocket has
no knowledge of what the actual FQDN is supposed to be.

(cherry picked from commit ee1a154153a1b20d55fc4b0dd9752277f0cd6451)

Bug: 27123298
Change-Id: Ie37e214f91e4f005f90da0d4a2aba1cd604d60b7

google/conscrypt,google/conscrypt,google/conscrypt,google/conscrypt,google/conscrypt,google/conscrypt