[stable/2024.1] [CLOUDOPS-563] Add Emulated TPM Doc (#2206)

This is an automated cherry-pick of #2088
/assign mnaser
diff --git a/doc/source/admin/index.rst b/doc/source/admin/index.rst
index 2232882..b149543 100644
--- a/doc/source/admin/index.rst
+++ b/doc/source/admin/index.rst
@@ -14,6 +14,7 @@
    :maxdepth: 2
 
    ceph
+   emulated-tpm
    integration
    maintenance
    monitoring