Use IOException rather than SocketException.

There are various other IOExceptions that can be thrown by either
toRead.getInputStream() or toRead().read(), but any of them indicate
that the concurrent closing of the socket was properly detected.  Some
examples are SSLHandshakeException, if the socket was part way through
the handshake when it was closed, or a bare IOException, if the
socket is closed during getInputStream() and we're reading the
underlying socket rather than the SSLSocket.

Bug: 62640872
Test: cts -m CtsLibcoreTestCases -t libcore.javax.net.ssl.SSLSocketTest#test_SLLSocket_interrupt

(cherry picked from commit c5ef172c)

Change-Id: Id22cb698bb9a558db63f0c28111aee09252ce96a
Merged-In: Id0275d19a0871a1484fe8f5bf644f1b5ea11d16b
Merged-In: I9aa12a4b42e778befacf00233b272ae59d9fe49f
Merged-In: Id1e57121783813b4e435fbed5760a1d78f906f38