libgcc, Darwin: Don't build legacy libgcc_s.1 on macOS 14 [PR116809]

d9cafa0c4f0a stopped building libgcc_s.1 on macOS >= 15, in part because
that is required to bootstrap the compiler using the macOS 15 SDK. The
macOS 15 SDK ships in Xcode 16, which also runs on macOS 14. libgcc_s.1
can no longer be built on macOS 14 using Xcode 16 by the same logic that
the previous change disabled it for macOS 15.

	PR target/116809

libgcc/ChangeLog:

	* config.host: Don't build legacy libgcc_s.1 on macOS 14.

Signed-off-by: Mark Mentovai <mark@mentovai.com>
(cherry picked from commit dd5b823ce238161156e7a4b6267bd30d7dde7c6b)

libgcc/config.host

@@ -236,7 +236,7 @@ case ${host} in
   esac
   tmake_file="$tmake_file t-slibgcc-darwin"
   case ${host} in
-    x86_64-*-darwin2[0-3]*)
+    x86_64-*-darwin2[0-2]*)
       tmake_file="t-darwin-min-11 t-darwin-libgccs1 $tmake_file"
       ;;
     *-*-darwin2*)