Changed binutils to enable 64-bit bfd support for x86-64

Note: This is work in progress, and further 64-bit architectures will be added
      as soon as they are tested!

base/binutils/binutils.conf

@@ -19,6 +19,12 @@ else
 	var_append extraconfopt ' ' "--enable-multilib"
 fi
 
+case "$arch" in
+	x86-64)
+		var_append extraconfopt ' ' '--enable-64-bit-bfd'
+		;;
+esac
+
 if atstage toolchain; then
 	bindir="/$prefix/crosscc"; mkdir -p $root/$prefix/crosscc
 	var_append confopt " " "--with-sysroot=$sysroot"