Correct instructions for single-node single-drive deploy on linux (#1338)

Common include for single-node deployments describes multi-drive, which
is wrong for single-drive. Replaced include with inline content that
specifies only a single drive everywhere.

Incidentally fixed list indentation in override, copied fix into include
as well.

Fixes: 

https://github.com/minio/docs/issues/1330

Staged:

[Deploy MinIO: Single-Node
Single-Drive](http://192.241.195.202:9000/staging/DOC-1330/linux/operations/install-deploy-manage/deploy-minio-single-node-single-drive.html)

(edited include not available to review on staging -- applies to macos
or docker/container -- but checked locally)

source/includes/common/common-deploy.rst

@@ -36,11 +36,14 @@ Include any other environment variables as required for your deployment.
    MinIO automatically generates unique root credentials if all of the following conditions are true:
 
    - :kes-docs:`KES <tutorials/getting-started/>` Release 2024-03-01T18-06-46Z or later running
+  
    - **Have not** defined:
+  
      - ``MINIO_ROOT_USER`` variable 
      - ``MINIO_ROOT_PASSWORD`` variable 
   
    - **Have**:
+  
      - set up KES with a :kes-docs:`supported KMS target <#supported-kms-targets>`
      - disabled root access with the :ref:`MinIO environment variable <minio-disable-root-access>`