Couldn't flash image into up_squared using misc.py script.

[chen-png]

Describe the bug
for up_squared and acrn, we used the scripts/west_commands/runners/misc.py to flash a image, but now it met an flash error.
the related commit is 3b49d01, i reverted my repo before this commit, it was ok.

To Reproduce
Steps to reproduce the behavior:

1. west build -b up_squared -p auto samples/hello_world
2. west flash up_squared.sh
3. See error

Screenshots or console output
Traceback (most recent call last):
File "/home/ztest/.local/bin/west", line 11, in
sys.exit(main())
File "/home/ztest/.local/lib/python3.6/site-packages/west/commands.py", line 116, in run
self.do_run(args, unknown)
File "/home/ztest/work/zephyrproject/zephyr/scripts/west_commands/flash.py", line 30, in do_run
do_run_common(self, my_args, runner_args)
File "/home/ztest/work/zephyrproject/zephyr/scripts/west_commands/run_common.py", line 147, in do_run_common
runner_config = load_runners_yaml(runners_yaml, user_args)
File "/home/ztest/work/zephyrproject/zephyr/scripts/west_commands/run_common.py", line 285, in load_runners_yaml
config = yaml.safe_load(f.read())
File "/home/ztest/.local/lib/python3.6/site-packages/yaml/init.py", line 162, in safe_load
return load(stream, SafeLoader)
File "/home/ztest/.local/lib/python3.6/site-packages/yaml/init.py", line 114, in load
return loader.get_single_data()
File "/home/ztest/.local/lib/python3.6/site-packages/yaml/constructor.py", line 41, in get_single_data
node = self.get_single_node()
File "/home/ztest/.local/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
document = self.compose_document()
File "/home/ztest/.local/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
node = self.compose_node(None, None)
File "/home/ztest/.local/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
node = self.compose_mapping_node(anchor)
File "/home/ztest/.local/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
while not self.check_event(MappingEndEvent):
File "/home/ztest/.local/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
self.current_event = self.state()
File "/home/ztest/.local/lib/python3.6/site-packages/yaml/parser.py", line 439, in parse_block_mapping_key
"expected , but found %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a block mapping
in "", line 2, column 1:
runners:
^
expected , but found '['
in "", line 20, column 2:
[]
^

Environment (please complete the following information):

• OS: Fedora28
• Toolchain: Zephyr-sdk-0.11.2
• Commit ID: c413cca

[chen-png]

@hakonfam Could you take a look of this? it's related to commit 3b49d01

[chen-png]

this blocked QA test, so changed it's priority to medium.

[hakonfam]

Please check #24218, it fixed the issue on my side.

[finikorg]

I have the same issue with up_square_adsp board, PR #22724 is failing.