Documentation - Add note to make sure that CSI is not installed when installing ODF-FS

Author: uriziv1

docs/configuring/limitations.md

@@ -5,6 +5,7 @@ Refer to these limitations before working with the ODF FlashSystem driver.
 The ODF FlashSystem driver contains the following limitations:
 
 - Only x86 architecture is supported.
+- Ensure IBM block storage CSI is not installed (It will be automatically installed during StorageSystem creation procedure).
 - When creating a storage class from within the Red Hat® ODF user-interface, installation of Ceph® RWO on FlashSystem storage systems is allowed. When working with FlashSystem storage systems, it is best to use a direct I/O path to the storage system. For more information, see [Configuration considerations](configuring.md#odf_config).
 - The following individual reports are not currently generated:
     - Pool performance

docs/installing/installing.md

@@ -4,6 +4,8 @@ Download and install the ODF FlashSystem driver to manage your FlashSystem stora
 
 **Important:** ODF FlashSystem driver is not a standalone product and **must** be used together with Red Hat OpenShift Data Foundation and with Red Hat OpenShift Data Foundation already installed.
 
+Ensure that IBM block storage CSI is not installed (It will be automatically installed during StorageSystem creation procedure).
+
 Install the ODF FlashSystem driver through the [Red Hat OpenShift certified operator catalog](https://catalog.redhat.com/software/search?type=Operator).
 
 **Note:** For full installation information see, **Deploying OpenShift Data Foundation in external mode** > **Deploy OpenShift Data Foundation using IBM FlashSystem** within the [Red Hat OpenShift Data Foundation Product Documentation](https://access.redhat.com/documentation/en-us/red_hat_openshift_data_foundation).