OSDOCS-11942 adding required permissions to main doc

Author: bscott-rh

modules/minimum-required-permissions-ipi-azure.adoc

@@ -70,6 +70,13 @@ The following permissions are required for creating an {product-title} cluster o
 * `Microsoft.Network/loadBalancers/backendAddressPools/write`
 * `Microsoft.Network/loadBalancers/read`
 * `Microsoft.Network/loadBalancers/write`
+* `Microsoft.Network/loadBalancers/inboundNatRules/read`
+* `Microsoft.Network/loadBalancers/inboundNatRules/write`
+* `Microsoft.Network/loadBalancers/inboundNatRules/join/action`
+* `Microsoft.Network/loadBalancers/inboundNatRules/delete`
+* `Microsoft.Network/routeTables/read`
+* `Microsoft.Network/routeTables/write`
+* `Microsoft.Network/routeTables/join/action`
 * `Microsoft.Network/networkInterfaces/delete`
 * `Microsoft.Network/networkInterfaces/join/action`
 * `Microsoft.Network/networkInterfaces/read`