update python track2 config for redisenterprise (Azure#12727)

* update python track2 config for redisenterprise

* remove old namespace

* fix

* fix

specification/redisenterprise/resource-manager/readme.md

@@ -50,7 +50,7 @@ This is not used by Autorest itself.
 ```yaml $(swagger-to-sdk)
 swagger-to-sdk:
   - repo: azure-sdk-for-net
-  - repo: azure-sdk-for-python
+  - repo: azure-sdk-for-python-track2
   - repo: azure-sdk-for-java
   - repo: azure-sdk-for-go
   - repo: azure-sdk-for-js

specification/redisenterprise/resource-manager/readme.python.md

@@ -3,19 +3,21 @@
 These settings apply only when `--python` is specified on the command line.
 Please also specify `--python-sdks-folder=<path to the root directory of your azure-sdk-for-python clone>`.
 
-```yaml $(python)
-python:
-  azure-arm: true
-  license-header: MICROSOFT_MIT_NO_VERSION
-  payload-flattening-threshold: 2
-  namespace: Microsoft.Cache
-  package-name: redisenterprise
-  package-version: 2020-10-01-preview
-  clear-output-folder: true
+```yaml $(python) && $(track2)
+python-mode: create
+azure-arm: true
+license-header: MICROSOFT_MIT_NO_VERSION
+namespace: azure.mgmt.redisenterprise
+package-name: azure-mgmt-redisenterprise
+package-version: 1.0.0b1
+clear-output-folder: true
 ```
 
-```yaml $(python)
-python:
-  no-namespace-folders: true
-  output-folder: $(python-sdks-folder)/azure-mgmt/redisenterprise
+```yaml $(python) && $(python-mode) == 'update'
+no-namespace-folders: true
+output-folder: $(python-sdks-folder)/redisenterprise/azure-mgmt-redisenterprise/azure/mgmt/redisenterprise
+```
+```yaml $(python) && $(python-mode) == 'create'
+basic-setup-py: true
+output-folder: $(python-sdks-folder)/redisenterprise/azure-mgmt-redisenterprise
 ```