x86/ucode: Extend warning about disabling digest check too

This was missed by accident.

Fixes: b63951467e ("x86/ucode: Extend AMD digest checks to cover Zen5 CPUs")
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>

xen/arch/x86/cpu/microcode/amd.c

@@ -516,8 +516,7 @@ static const struct microcode_ops __initconst_cf_clobber amd_ucode_ops = {
 
 void __init ucode_probe_amd(struct microcode_ops *ops)
 {
-    if ( !opt_digest_check &&
-         boot_cpu_data.x86 >= 0x17 && boot_cpu_data.x86 <= 0x19 )
+    if ( !opt_digest_check && boot_cpu_data.x86 >= 0x17 )
     {
         printk(XENLOG_WARNING
                "Microcode patch additional digest checks disabled");