[newlib-cygwin] Cygwin: Update some mentions of x86 in documentation

[Jon TURNEY <jturney@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=17761a8ef493351cf0678e24975839e6b30f6736

commit 17761a8ef493351cf0678e24975839e6b30f6736
Author: Jon Turney <jon.turney@dronecode.org.uk>
Date:   Sun Nov 27 13:50:19 2022 +0000

    Cygwin: Update some mentions of x86 in documentation

Diff:
---
 winsup/doc/faq-programming.xml | 2 +-
 winsup/doc/overview.xml        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/winsup/doc/faq-programming.xml b/winsup/doc/faq-programming.xml
index 89c309af2..6b5d28034 100644
--- a/winsup/doc/faq-programming.xml
+++ b/winsup/doc/faq-programming.xml
@@ -785,7 +785,7 @@ demonstrates the bug is always welcome).
 <answer>
 
 <para>Unfortunately, this will be difficult.  Exception handling and signals
-support semantics and args have been designed for x86 so you would need
+support semantics and args have been designed for x86_64 so you would need
 to write specific support for your platform.  We don't know of any other
 incompatibilities. Please send us patches if you do this work!
 </para>
diff --git a/winsup/doc/overview.xml b/winsup/doc/overview.xml
index 6fb759f45..aaaaef0cd 100644
--- a/winsup/doc/overview.xml
+++ b/winsup/doc/overview.xml
@@ -13,7 +13,7 @@ Cygwin is a Linux-like environment for Windows. It consists of a DLL
 providing substantial <ulink url="http://www.pasc.org/#POSIX">POSIX</ulink>
 (Portable Operating System Interface) system call functionality, and a
 collection of tools, which provide a Linux look and feel. The Cygwin DLL
-works with all x86 and AMD64 versions of Windows NT since Windows XP SP3.
+works with all AMD64 versions of Windows NT since Windows Vista/Server 2008.
 The API follows the
 <ulink url="http://www.opengroup.org/onlinepubs/009695399/nfindex.html">Single
 Unix Specification</ulink> as much as possible, and then Linux practice.