powerpc/virtex: add Xilinx 440 cpu to the cputable

Updates the cputable to include the 440 processor found in the
Xilinx Virtex5 FXT FPGA.

Signed-off-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
1 file changed