Concatenate .img suffix for images names

This commit removes printf and use concatenation to get the .img
suffix in the images names.

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>
Reviewed-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Differential Revision: https://phabricator.apertis.org/D7346

apertis-image-sdk.yaml

@@ -18,7 +18,7 @@ actions:
     file: {{ $ospack }}
 
   - action: image-partition
-    imagename: {{ (printf "%s.img" $image) }}
+    imagename: {{ $image }}.img
     imagesize: 20G
     partitiontype: gpt
 

apertis-image-uboot.yaml

@@ -17,7 +17,7 @@ actions:
     file: {{ $ospack }}
 
   - action: image-partition
-    imagename: {{ (printf "%s.img" $image) }}
+    imagename: {{ $image }}.img
 {{ if eq $type "minimal" }}
     imagesize: 4G
 {{ else }}

apertis-image-uefi.yaml

@@ -17,7 +17,7 @@ actions:
     file: {{ $ospack }}
 
   - action: image-partition
-    imagename: {{ (printf "%s.img" $image) }}
+    imagename: {{ $image }}.img
 {{ if eq $type "minimal" }}
     imagesize: 7G
 {{end}}