ttf-dejavu: Extend for native and nativesdk
When using doxygen together with the "dot" tool (graphviz package), a
ttf font package is additionally required.
Probably this change could also be moved to ttf.inc.
Signed-off-by: Christian Eggers <ceggers@arri.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>