Move early_data_accepted to ssl->s3.

This is connection state, not configuration, so it must live on
ssl->s3, otherwise SSL_clear will be confused.

Change-Id: Id7c87ced5248d3953e37946e2d0673d66bfedb08
Reviewed-on: https://boringssl-review.googlesource.com/24264
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>

ssl/ssl_lib.cc

diff --git a/ssl/ssl_lib.cc b/ssl/ssl_lib.cc
index 6da081e..af4ffc4 100644
--- a/ssl/ssl_lib.cc
+++ b/ssl/ssl_lib.cc
@@ -1187,7 +1187,7 @@
 }
 
 int SSL_early_data_accepted(const SSL *ssl) {
-  return ssl->early_data_accepted;
+  return ssl->s3->early_data_accepted;
 }
 
 void SSL_reset_early_data_reject(SSL *ssl) {