Log Message:
Bump PKGREVISION of poppler-qt because its dependency
poppler no longer requires glib and gtk2.
Update buildlink3.mk file for poppler-qt to only have BUILDLINK_DEPENDS
for this.

And increase PKGREVISION of kdegraphics3 because the poppler used
no longer needs glib and GTK2. (It doesn't look like anything else
in kdegraphics3 uses glib nor gtk2 now.)