tests/bootupd: don't check for /boot/bootupd-state.json on s390x

On x86_64 and aarch64, we always expect the file to exist. On ppc64le,
we only expect it to exist if it was built using osbuild. On s390x, we
never expect it to exist.

Fixes 10d5f64 ("tests/bootupd: check for `/boot/bootupd-state.json`").

tests/kola/boot/bootupd

@@ -17,9 +17,18 @@ set -xeuo pipefail
 # s390x, let's just conditionally check that *if* bootupd is installed, then
 # it's functioning as expected. We can harden it more once we've hard cut over
 # to 9.4.
+check_state_file=
 case "$(arch)" in
     aarch64|x86_64)
+        # on these arches, we always expect state files to exist
+        check_state_file=1
         ;;
+    ppc64le)
+        # ppc64le has it if built by osbuild, otherwise not
+        if [ -e /sysroot/.aleph-version.json ]; then
+            check_state_file=1
+        fi
+        ;& # fallthrough
     *)
         if ! rpm -q bootupd; then
             exit 0
@@ -28,7 +37,7 @@ case "$(arch)" in
 esac
 
 state_file=/boot/bootupd-state.json
-if [ ! -f "${state_file}" ]; then
+if [ -n "${check_state_file}" ] && [ ! -f "${state_file}" ]; then
     fatal "${state_file} not present"
 fi