Update URLs to Java technotes and platform docs

Fix links to {@docRoot}/../{technotes,platform} pages.

This is done by batch editing using the following script:
  grep @docRoot -rl | xargs sed -i 's/\/..\/technotes/r\/openjdk-redirect.html?v=8\&path=\/technotes/g;s/\/..\/platform/openjdk-redirect.html?v=8\&path=\/platform/g'

Bug: 27540501
Change-Id: Ib5634cd461fbba37dd94ddad9660910dc9397fe7
(cherry picked from commit d2449bb576ad1e3a3877364e5e1ae28625f69e35)
94 files changed