analyze: add verb for showing system's CHIDs

We have the code already, expose it in systemd-analyze too.

This should make it easier to debug the CHID use in the UKIs with
onboard tooling.

shell-completion/bash/systemd-analyze

@@ -67,7 +67,7 @@ _systemd_analyze() {
     )
 
     local -A VERBS=(
-        [STANDALONE]='time blame unit-files unit-paths exit-status compare-versions calendar timestamp timespan pcrs srk has-tpm2 smbios11'
+        [STANDALONE]='time blame unit-files unit-paths exit-status compare-versions calendar timestamp timespan pcrs srk has-tpm2 smbios11 chid'
         [CRITICAL_CHAIN]='critical-chain'
         [DOT]='dot'
         [DUMP]='dump'