Add kernel upgrade step

Signed-off-by: Srinivasamurthy, Ramakrishna <ramakrishna.srinivasamurthy@intel.com>

Author: Ram-srini

design-proposals/separation-of-onboard-and-provisioning.md

@@ -115,5 +115,7 @@ autonumber
 
 - In the interactive onboarding mapping the instance resource to OS resource is done by taking OS version from the Edge node during device discovery stage.
 
-- Cluster creation might need the required partitions to be created which is done during the provisioning flow
+- Cluster creation might need the required partitions to be created which is done during the provisioning flow.
+
+- Kernel might need to be upgraded based on platform in order to use the platform features.