(shark) XFree86 support

Support for XFree86 is back. Sharks with IGS 2010 graphics controller can now use XFree86 with the wsfb driver on kernels that use the igsfb driver. Those with a C&T 65550 should work with the chips driver but this is untested. See also the announcement on the port-arm mailing list. An example XF86Config can be found here. [0 comments]