OSDOCS-5088: Added Alibabacloud to install FIPS mode list

Author: dfitzmau

installing/installing-fips.adoc

@@ -71,6 +71,7 @@ To ensure that containers know that they are running on a host that is using FIP
 To install a cluster in FIPS mode, follow the instructions to install a customized cluster on your preferred infrastructure. Ensure that you set `fips: true` in the `install-config.yaml` file before you deploy your cluster.
 
 * xref:../installing/installing_aws/installing-aws-customizations.adoc#installing-aws-customizations[Amazon Web Services]
+* xref:../installing/installing_alibaba/installing-alibaba-customizations.adoc#installing-alibaba-customizations[Alibaba Cloud]
 * xref:../installing/installing_azure/installing-azure-customizations.adoc#installing-azure-customizations[Microsoft Azure]
 * xref:../installing/installing_bare_metal/installing-bare-metal.adoc#installing-bare-metal[Bare metal]
 * xref:../installing/installing_gcp/installing-gcp-customizations.adoc#installing-gcp-customizations[Google Cloud Platform]