CLOUDSTACK-7579 Adding a method to base.py to update storage pool

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>

Author: prashantkm

tools/marvin/marvin/lib/base.py

@@ -2571,6 +2571,13 @@ def listForMigration(cls, apiclient, **kwargs):
             cmd.listall = True
         return(apiclient.findStoragePoolsForMigration(cmd))
 
+    @classmethod
+    def update(cls,apiclient, **kwargs):
+        """Update storage pool"""
+        cmd=updateStoragePool.updateStoragePoolCmd()
+        [setattr(cmd, k, v) for k, v in kwargs.items()]
+        return apiclient.updateStoragePool(cmd)
+
 class Network:
     """Manage Network pools"""