Use nfs instead of nfsroot image type

This is to be closer to the type that is used in apertis-lava-recipes.
This way, we avoid using more variables to cover image type (nfs) and
test type (nfsroot). Now, they are both called nfs.

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>

generate-jobs.py

@@ -235,7 +235,7 @@ parser.add_argument('--deployment', choices=['ostree', 'apt', 'nfs', 'lxc'],
                     required=True,
                     help="set the deployment method of the image")
 parser.add_argument('--type',
-                    choices=['hmi', 'fixedfunction', 'basesdk', 'sdk', 'nfsroot'],
+                    choices=['hmi', 'fixedfunction', 'basesdk', 'sdk', 'nfs'],
                     required=True,
                     help="set the type of the image to be tested")
 parser.add_argument('--release', type=str, required=True,

test-cases/nfsroot-simple-boot.yaml

@@ -2,7 +2,7 @@ metadata:
   name: nfsroot-simple-boot
   format: "Apertis Test Definition 1.0"
   image-types:
-    nfsroot: [ armhf, arm64, amd64 ]
+    nfs: [ armhf, arm64, amd64 ]
   image-deployment:
     - NFS
   group: "nfs"