ogsf: fix compilation issue on Cygwin (64bit)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@67031 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/ogsf/gsd_img_tif.c

@@ -29,7 +29,9 @@
 
 #include <stdlib.h>
 #include <sys/types.h>
-
+#ifdef __CYGWIN__
+ #include <w32api/wtypes.h>
+#endif
 #include <grass/gis.h>
 #include <grass/ogsf.h>
 #include <grass/glocale.h>