qtwebengine: show progress for do_compile

This was stolen from meta-oe / meson.bbclass - qtwebengine uses ninja for
build too.

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

recipes-qt/qt5/qtwebengine_git.bb

@@ -87,6 +87,8 @@ do_configure() {
         -after ${EXTRA_QMAKEVARS_POST}
 }
 
+do_compile[progress] = "outof:^\[(\d+)/(\d+)\]\s+"
+
 do_install_append() {
     rmdir ${D}${OE_QMAKE_PATH_PLUGINS}/${BPN} ${D}${OE_QMAKE_PATH_PLUGINS} || true
     sed -i 's@ -Wl,--start-group.*-Wl,--end-group@@g; s@-L${B}[^ ]* @ @g' ${D}${libdir}/pkgconfig/Qt5WebEngineCore.pc