Hyperion: Fix fatal error in last merge

[starkillerOG]

Description:

In the last commit the self._brightness has been removed and named brightness.
However if the brightness is not in the current command this breaks the turn_on action because it is required for the cal_rgb.
This fixes that by using the self._brightness if it is not in the current command.

My last commit is alreay merged in this pull request:
#11543

Related issue (if applicable): fixes #

Pull request in home-assistant.github.io with documentation (if applicable): home-assistant/home-assistant.github.io#<home-assistant.github.io PR number goes here>

Example entry for configuration.yaml (if applicable):

Checklist:

• The code change is tested and works locally.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in home-assistant.github.io

If the code communicates with devices, web services, or third-party tools:

• Local tests with tox run successfully. Your PR cannot be merged unless tests pass
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If the code does not interact with devices:

• Local tests with tox run successfully. Your PR cannot be merged unless tests pass
• Tests have been added to verify that the new code works.

[starkillerOG]

@MartinHjelmare alright I think I have got it now.
The problem is that I use Git online on the website and not from command line.
But I think this one is clean and up to date with the dev branch.

Sorry for creating such a mess with clossed pull requests.

Can this now be merged?

[MartinHjelmare]

Great, thanks! This can be merged when build passes.

[starkillerOG]

@MartinHjelmare the build hass passed, can you now merge?
Thank you!