docs: credit Konrad EISELE for the initial multilib support

Konrad submitted an initial patch adding multlib support:
http://sourceware.org/ml/crossgcc/2011-11/msg00040.html

The patch was full of good ideas, but had a few issues, so
I (Yann E. MORIN) started it all from scatch, re-using part
of the original patch. This got implemented in this series:
hg log -r 446a17b5dd1e:e47d17391ae3

As I forgot to credit Konrad in these changelogs, update the
docs so that the work by Konrad gets credited. Without his
initial effort, we would probably not have had multlib support
so soon. Thank you Konrad!

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

diff -dur strace-4.5.16.orig/configure.ac strace-4.5.16/configure.ac

--- strace-4.5.16.orig/configure.ac	2007-07-14 19:25:25.000000000 +0200

+++ strace-4.5.16/configure.ac	2007-07-14 19:27:35.000000000 +0200

@@ -91,14 +91,14 @@

 	arch=hppa

 	AC_DEFINE([HPPA], 1, [Define for the HPPA architecture.])

 	;;

-sh)

-	arch=sh

-	AC_DEFINE([SH], 1, [Define for the SH architecture.])

-	;;

 sh64)

 	arch=sh64

 	AC_DEFINE([SH64], 1, [Define for the SH64 architecture.])

 	;;

+sh*)

+	arch=sh

+	AC_DEFINE([SH], 1, [Define for the SH architecture.])

+	;;

 x86?64*)

 	arch=x86_64

 	AC_DEFINE([X86_64], 1, [Define for the AMD x86-64 architecture.])