fixed controller name in markup

[mxab]

Request Type: docs

How to reproduce:

Component(s): forms

Impact: small

Complexity: small

This issue is related to:

Detailed Description:

The "Binding to form and control state" sample had a wrong controller name which prevents the sample from running

Other Comments:

[mary-poppins]

Thanks for the PR! Please check the items below to help us merge this faster. See the contributing docs for more information.

• Uses the issue template (#8206)

If you need to make changes to your pull request, you can update the commit with git commit --amend.
Then, update the pull request with git push -f.

Thanks again for your help!

[mary-poppins]

I'm sorry, but I wasn't able to verify your Contributor License Agreement (CLA) signature. CLA signature is required for any code contributions to AngularJS.

Please sign our CLA and ensure that the CLA signature email address and the email address in this PR's commits match.

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Thanks a bunch!

PS: If you signed the CLA in the past then most likely the email addresses don't match. Please sign the CLA again or update the email address in the commit of this PR.
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[Narretz]

@petebacondarwin Can you please merge this one, or #8133? There is even another one, but I can't find it now

[petebacondarwin]

Will do. Closing as duplicate of #8133

[Narretz]

... that PR is actually for a different file, with the same problem, my bad

P.S. I blame @btford ! 😈

[petebacondarwin]

:-) Will fix tomorrow

[btford]

✨ I regret nothing. ✨