Add Xilinx to acknowledgements file

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
diff --git a/acknowledgements.md b/acknowledgements.md
index 3ffefc7..2f6309e 100644
--- a/acknowledgements.md
+++ b/acknowledgements.md
@@ -7,5 +7,7 @@
 
 NVIDIA Corporation
 
+Xilinx, Inc.
+
 Individuals
 -----------