Build documentation for maliit-glib conditionally.
Build documentation for maliit-glib conditionally.

RevBy: TrustMe

We do not want to build it if we passed CONFIG+=nodoc to qmake.

Full, original commit at d574f43bf3221e1a89820e2b8292c6d2183a1751 in maliit-framework

maliit/inputcontext-gtk,maliit/inputcontext-gtk