lib: add #include "foo.h" lines like in manpages

Should help in alleviating the header mess we have atm.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

lib/ioctl_wrappers.c

@@ -63,6 +63,8 @@
  * @short_description: ioctl wrappers and related functions
  * @title: ioctl wrappers
  *
+ * > #include "ioctl_wrappers.h"
+ *
  * This helper library contains simple functions to wrap the raw drm/i915 kernel
  * ioctls. The normal versions never pass any error codes to the caller and use
  * igt_assert() to check for error conditions instead. For some ioctls raw