lava: move macroses into dedicated file

This allows to use the same macroses across all templates.

Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>

lava/common-boot-macros.yaml

+{% macro kernel_type(arch) -%}
+    {% if arch == 'arm64' -%}
+        image
+    {%- else -%}
+        zimage
+    {%- endif %}
+{%- endmacro %}

lava/common-boot-tpl.yaml

+{% import 'common-boot-macros.yaml' as boot with context -%}
+
 device_type: {{device_type}}
 priority: medium
-{% macro kernel_type(arch) -%}
-    {% if arch == 'arm64' -%}
-        image
-    {%- else -%}
-        zimage
-    {%- endif %}
-{%- endmacro %}
 
 visibility: {{visibility}}
 
@@ -53,7 +48,7 @@ actions:
       to: tftp
       kernel:
         url: {{firststageurl}}/{{arch}}/nfs/vmlinuz
-        type: {{kernel_type(arch)}}
+        type: {{boot.kernel_type(arch)}}
       nfsrootfs:
         url: {{firststageurl}}/{{arch}}/nfs/apertis-nfs-{{arch}}.tar.gz
         compression: gz

lava/group-nfs-tpl.yaml

 job_name: Nfsroot tests on {{release_version}} {{pretty}} {{image_date}}
 
+{% import 'common-boot-macros.yaml' as boot with context -%}
+
 device_type: {{device_type}}
 priority: medium
-{% macro kernel_type(arch) -%}
-    {% if arch == 'arm64' -%}
-        image
-    {%- else -%}
-        zimage
-    {%- endif %}
-{%- endmacro %}
-
 visibility: {{visibility}}
 
 notify:
@@ -55,7 +49,7 @@ actions:
       to: tftp
       kernel:
         url: {{baseurl}}/{{imgpath}}/{{image_date}}/{{arch}}/nfs/vmlinuz
-        type: {{kernel_type(arch)}}
+        type: {{boot.kernel_type(arch)}}
       nfsrootfs:
         url: {{baseurl}}/{{imgpath}}/{{image_date}}/{{arch}}/nfs/apertis-nfs-{{arch}}.tar.gz
         compression: gz