Express Route GW Az/Non-Az Region Update (#1977)

Author: Springstone

docs/wiki/Whats-new.md

@@ -61,6 +61,7 @@ Here's what's changed in Enterprise Scale/Azure Landing Zones:
 
 - Updated the ***Baseline alerts and monitoring*** integration section in the portal accelerator to deploy the latest release of AMBA (2025-04-04). To read more on the changes, see the [What's new](https://aka.ms/amba/alz/whatsnew) page in the AMBA documentation.
 - Sentinel is no longer enabled by default. However, it can be enabled by selecting "Yes" during the deployment process. This decision should be made deliberately, as additional configuration will be necessary post-deployment of ALZ. Please also verify regional availability for this service, as it may not yet be accessible in some newer regions.
+- FIX: ER Gateway SKU selection would provide two selectors when choosing specific regions. This has been fixed to only show the relevant SKU options for the selected region.
 
 ### March 2025
 

eslzArm/eslz-portal.json

@@ -2558,7 +2558,7 @@
                             "selectAll": false,
                             "filter": false,
                             "multiLine": true,
-                            "visible": "[and(and(equals(steps('connectivity').enableErGw, 'Yes'), not(equals(steps('connectivity').enableHub, 'vwan'))),equals(steps('connectivity').enableErGw,'Yes'), not(contains(split('canadacentral,centralus,eastus,eastus2,southcentralus,westus2,francecentral,germanywestcentral,northeurope,westeurope,uksouth,southafricanorth,japaneast,southeastasia,australiaeast,italynorth', ','), steps('connectivity').connectivityLocation)))]",
+                            "visible": "[and(and(equals(steps('connectivity').enableErGw, 'Yes'), not(equals(steps('connectivity').enableHub, 'vwan'))),equals(steps('connectivity').enableErGw,'Yes'), not(contains(split('brazilsouth,canadacentral,centralus,eastus,eastus2,southcentralus,westus2,westus3,mexicocentral,francecentral,italynorth,germanywestcentral,norwayeast,northeurope,uksouth,westeurope,swedencentral,switzerlandnorth,polandcentral,spaincentral,qatarcentral,uaenorth,israelcentral,southafricanorth,australiaeast,centralindia,japaneast,japanwest,southeastasia,eastasia,koreacentral,newzealandnorth,taiwannorth', ','), steps('connectivity').connectivityLocation)))]",
                             "toolTip": "Select the required SKU for the Express Route gateway.",
                             "constraints": {
                                 "allowedValues": [
@@ -3683,7 +3683,7 @@
                                     "selectAll": false,
                                     "filter": false,
                                     "multiLine": true,
-                                    "visible": "[and(and(equals(steps('connectivity').esNetworkSecondarySubSection.enableErGwSecondary, 'Yes'), not(equals(steps('connectivity').enableHub, 'vwan'))),equals(steps('connectivity').esNetworkSecondarySubSection.enableErGwSecondary,'Yes'), not(contains(split('canadacentral,centralus,eastus,eastus2,southcentralus,westus2,francecentral,germanywestcentral,northeurope,westeurope,uksouth,southafricanorth,japaneast,southeastasia,australiaeast,italynorth', ','), steps('connectivity').esNetworkSecondarySubSection.connectivityLocationSecondary)))]",
+                                    "visible": "[and(and(equals(steps('connectivity').esNetworkSecondarySubSection.enableErGwSecondary, 'Yes'), not(equals(steps('connectivity').enableHub, 'vwan'))),equals(steps('connectivity').esNetworkSecondarySubSection.enableErGwSecondary,'Yes'), not(contains(split('brazilsouth,canadacentral,centralus,eastus,eastus2,southcentralus,westus2,westus3,mexicocentral,francecentral,italynorth,germanywestcentral,norwayeast,northeurope,uksouth,westeurope,swedencentral,switzerlandnorth,polandcentral,spaincentral,qatarcentral,uaenorth,israelcentral,southafricanorth,australiaeast,centralindia,japaneast,japanwest,southeastasia,eastasia,koreacentral,newzealandnorth,taiwannorth', ','), steps('connectivity').esNetworkSecondarySubSection.connectivityLocationSecondary)))]",
                                     "toolTip": "Select the required SKU for the Express Route gateway.",
                                     "constraints": {
                                         "allowedValues": [