teuthology/tasks/kernel: switch firmware branch name
It is now "main".
Fixes:
@@ -288,7 +288,7 @@ def install_firmware(ctx, config):
run.Raw('&&'),
'sudo', 'git', 'fetch', 'origin',
run.Raw('&&'),
- 'sudo', 'git', 'reset', '--hard', 'origin/master'
+ 'sudo', 'git', 'reset', '--hard', 'origin/main'
],
)
