Add NXP to contributor list

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
diff --git a/acknowledgements.rst b/acknowledgements.rst
index 59f569e..9b81b6c 100644
--- a/acknowledgements.rst
+++ b/acknowledgements.rst
@@ -12,5 +12,7 @@
 
 Xilinx, Inc.
 
+NXP Semiconductors
+
 Individuals
 -----------