TT#190250 Fix ngcp-sync-* symlinks

Otherwise we end up with broken symlinks in the Debian package.

Change-Id: I16626c41fecfbaf2c3b3616cb72b6f5e024d9565
Fixes: commit 3b3baae3c

debian/ngcp-ngcpcfg.links

@@ -1,5 +1,5 @@
-usr/sbin/ngcp-sync-constants usr/sbin/ngcp-sync-db-creds
-usr/sbin/ngcp-sync-grants usr/sbin/ngcp-sync-db-grants
+usr/sbin/ngcp-sync-db-creds usr/sbin/ngcp-sync-constants
+usr/sbin/ngcp-sync-db-grants usr/sbin/ngcp-sync-grants
 usr/sbin/ngcpcfg usr/sbin/ngcp-config
 usr/share/bash-completion/completions/ngcpcfg usr/share/bash-completion/completions/ngcp-config
 usr/share/man/man8/ngcp-sync-constants.8.gz usr/share/man/man8/ngcp-sync-db-creds.8.gz