Update opal-flash-110-111-112.rst

[jnider]

correct typo: much -> must

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This change is 

[ghost]

Thanks so much for your patch and pull request!

One small thing I need before I can merge it though is a Signed-off-by line, as per Developer Certificate of Origin (see https://github.com/open-power/skiboot/blob/master/CONTRIBUTING.md#developer-certificate-of-origin ). This keeps a good solid audit log of where code comes from and through who (and we use it for all the same reasons as the Linux Kernel does).

A simple way to do it is "git commit --amend -s".

[jnider]

I signed off the patch - do I need to create a new pull request?

[ghost]

Joel Nider <notifications@github.com> writes:

I signed off the patch - do I need to create a new pull request?

No, it's fine, I can take it from there. Thanks!

…

-- Stewart Smith OPAL Architect, IBM.

[ghost]

I went to merge this, but I think you forgot to "git push -f" to the branch as the commit there doesn't have the 'Signed-off-by' tag in it.