bitbake: toaster: models Add cancelled state to build outcome

A new state CANCELLED is introduced to, distinguish
the state of build.

[YOCTO #6787]

(Bitbake rev: 404f406fecae879703bcfe96f3b65086b115fa8a)

Signed-off-by: Sujith H <sujith.h@gmail.com>
Signed-off-by: Michael Wood <michael.g.wood@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/toaster/orm/migrations/0006_add_cancelled_state.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('orm', '0005_task_field_separation'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='build',
+            name='outcome',
+            field=models.IntegerField(default=2, choices=[(0, b'Succeeded'), (1, b'Failed'), (2, b'In Progress'), (3, b'Cancelled')]),
+        ),
+    ]