Update pre-condition and steps for sdk-persistent

Modify the steps to run the test on SDK and enable nested virtualization
as part of pre-condition.

Signed-off-by: MN Nithin <MN.Nithin@in.bosch.com>

test-cases/sdk-persistent-disk.yaml

@@ -13,14 +13,18 @@ metadata:
   description: "Tests that persistent disk can be used when upgrading the SDK."
 
   pre-conditions:
-    - Python3, e.g. see
-    - "~https://docs.conda.io/en/latest/miniconda.html"
-    - "`paramiko` package should be installed for Python3 by running:"
-    - $ pip3 install paramiko
-    - "A virtual disk image (compressed or not) or a URL from which to get it from:"
+    - "To enable nested virtualization in Windows PC, the below line is to be executed from command prompt"
+    - $ <path>\VBoxManage.exe modifyvm <virtual_machine_name> --nested-hw-virt on
+    - |
+        > Edit <path> i.e path to VBoxManage.exe and <virtual_machine_name> i.e Virtual Machine name of the SDK(in which test should be performed) accordingly, for eg:
+        C:\Program Files\Oracle\VirtualBox\VBoxManage.exe modifyvm "Apertis v2023 SDK" --nested-hw-virt on
+    - "Start the SDK (which is mentioned in the previous step) and run"
+    - $ sudo modprobe kvm_intel
+    - |
+        > To verify, run `cat /sys/module/kvm_intel/parameters/nested` and output should be `Y`
+    - "An image (ova or vdi) or a URL from which to get it from:"
     - "~https://images.apertis.org/"
-    - "Clone of the apertis-tests repository:"
-    - $ git clone https://gitlab.apertis.org/pkg/apertis-tests.git
+
 
   expected:
     - "Test should end up with:"
@@ -36,14 +40,12 @@ metadata:
 
 run:
   steps:
-    - "For Windows:"
+    - "Clone of the apertis-tests repository:"
+    - $ git clone https://gitlab.apertis.org/pkg/apertis-tests.git
     - $ cp apertis-tests/psdk-test/psdk-test.ini.in apertis-tests/psdk-test/psdk-test.ini
-    - |
-        > Edit apertis-tests/psdk-test/psdk-test.ini with the correct values, for example:
-        vboxmanage_path = C:\Program Files\Oracle\VirtualBox\VBoxManage.exe
     - "Execute the psdk-test script from the apertis-tests repository, passing the
        URL or path to the Apertis SDK VDI image, for example:"
     - $ cd apertis-tests/psdk-test
-    - $ python ./psdk-test <apertis_sdk_image>
+    - $ python3 ./psdk-test <apertis_sdk_image>
     - This will complete the execution of the tests, please check that the expected
       result is obtained.