use saner location for lipi plugins

linux distributors don't like it at all when arch-specific binaries
end up in shared data directories.

Change-Id: I2f983cb8fc3713fea25cd103013d0ce5356ffa0c
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

src/virtualkeyboard/3rdparty/lipi-toolkit/src/lipiplugin.pri

@@ -5,6 +5,5 @@ CONFIG += plugin
 
 DESTDIR = $$MODULE_BASE_OUTDIR/plugins/lipi_toolkit
 
-### This is a bad install location for arch-specific binaries.
-target.path = $$[QT_INSTALL_DATA]/qtvirtualkeyboard/lipi_toolkit/lib
+target.path = $$[QT_INSTALL_PLUGINS]/lipi_toolkit
 INSTALLS += target

src/virtualkeyboard/lipisharedrecognizer.cpp

@@ -182,7 +182,7 @@ int LipiSharedRecognizer::loadLipiInterface()
     if (++s_lipiEngineRefCount == 1) {
         if (s_lipiRoot.isEmpty()) {
             if (qEnvironmentVariableIsEmpty("LIPI_ROOT")) {
-                s_lipiRoot = QDir(QLibraryInfo::location(QLibraryInfo::DataPath) + "/qtvirtualkeyboard/lipi_toolkit").absolutePath();
+                s_lipiRoot = QDir(QLibraryInfo::location(QLibraryInfo::PluginsPath) + "/lipi_toolkit").absolutePath();
                 qputenv("LIPI_ROOT", s_lipiRoot.toLatin1());
             } else {
                 s_lipiRoot = qgetenv("LIPI_ROOT");