AIX: ignore luci-go on the OS because it's missing

Change-Id: I663da3357f6e88848048ec42832fe7017d563ac4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2264952Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#68563}

DEPS

@@ -254,7 +254,7 @@ deps = {
           'version': Var('luci_go'),
         },
       ],
-      'condition': 'host_cpu != "s390"',
+      'condition': 'host_cpu != "s390" and host_os != "aix"',
       'dep_type': 'cipd',
   },
   'v8/tools/clang/dsymutil': {