qtbase: fix qlibrayinfo patch

* returning QSettings even without existing qtconfig was causing,
  e.g. QLibraryInfo::location(QLibraryInfo::PluginsPath) returning
  "`pwd`/plugins" instead of correct "/usr/lib/qt5/plugins"

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
qtbase: refresh patches, drop 2 unused

* drop Change-Ids, add Upstream-Status
* 0010-qmake-property-rename-QT_INSTALL_CONFIGURATION-to-QT.patch was
  rejected upstream, 0007 was only in meta-qt5/qtbase repo, but wasn't
  used in recipes

* 0004-Disable-mkv8snapshot.patch and
  0005-AddSynchoronization-qimagereader.patch are special, because they
  are applied only to 5.0.0

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>