Update Make const_1_mode print $1 in AT&T syntax

commit b70a487d5945b13e5ab503be4fc37b964819ec0e
Author: Cui, Lili <lili.cui@intel.com>
Date:   Wed Dec 13 06:07:36 2023 +0000

    Make const_1_mode print $1 in AT&T syntax

changes disassembler output from

d1 f8                   sar    %eax

to

d1 f8                   sar    $1,%eax

Adjust pe-x86-64-6.od accordingly.

	* testsuite/ld-x86-64/pe-x86-64-6.od: Adjusted.