xtf: fix argo test parameters

The mac-permissive= option is currently ignored because Argo configuration
parameters are comma-separated.

Fix the missing comma in the XTF test arguments.

Fixes: 150c6ef459 ("CI: add argo x86 XTF test")
Signed-off-by: Denis Mukhin <dmukhin@ford.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>

automation/scripts/include/xtf-runner

@@ -69,7 +69,7 @@ function xtf_build_cmdline()
     local xtf_name=$2
     declare -a cmdline=()
     declare -A per_test_args=(
-        [argo]="argo=1 mac-permissive=1"
+        [argo]="argo=1,mac-permissive=1"
     )
 
     cmdline+=("${XEN_CMDLINE}")