ghash-x86[_64].pl: add due credit.

crypto/modes/asm/ghash-x86.pl

@@ -94,6 +94,10 @@
 # setup, as well as code size and complexity increase. As even
 # optimistic estimate doesn't promise 30% performance improvement,
 # there are currently no plans to increase Naggr.
+#
+# Special thanks to David Woodhouse <dwmw2@infradead.org> for
+# providing access to a Westmere-based system on behalf of Intel
+# Open Source Technology Centre.
 
 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 push(@INC,"${dir}","${dir}../../perlasm");

crypto/modes/asm/ghash-x86_64.pl

@@ -25,6 +25,10 @@
 # Add PCLMULQDQ version performing at 2.07 cycles per processed byte.
 # See ghash-x86.pl for background information and details about coding
 # techniques.
+#
+# Special thanks to David Woodhouse <dwmw2@infradead.org> for
+# providing access to a Westmere-based system on behalf of Intel
+# Open Source Technology Centre.
 
 $flavour = shift;
 $output  = shift;