Bump buidlroot version to 2018.02.6

bsp/buildroot/package/qt5/qt5base/qt.conf.in

@@ -0,0 +1,19 @@
+[Paths]
+Prefix=@@HOST_DIR@@
+Sysroot=@@STAGING_DIR@@
+Headers=/usr/include/qt5
+Libraries=/usr/lib
+LibraryExecutables=/usr/libexec
+Binaries=/usr/bin
+Plugins=/usr/lib/qt/plugins
+Examples=/usr/lib/qt/examples
+Qml2Imports=/usr/qml
+Imports=/usr/imports
+Translations=/usr/translations
+Examples=/usr/lib/qt/examples
+Demos=/usr/lib/qt/examples
+Tests=/usr/tests
+Settings=/usr
+Documentation=/usr/doc
+ArchData=/usr
+Data=/usr