Fix-up the category of the 'ms-cla' license

[fviernau]

The license is a Contributor License Agreement, not a Patent License.

Fixes #3317.

[AyanSinhaMahapatra]

There is a paragraph:

b. Patent License. You grant Microsoft, and those who receive the Submission directly or indirectly from Microsoft, a perpetual, worldwide, non-exclusive, royalty-free, irrevocable license under Your patent claims that are necessarily infringed by the Submission or the combination of the Submission with the Project to which it was Submitted to make, have made, use, offer to sell, sell and import or otherwise dispose of the Submission alone or with the Project.

Which could be the reason why we mark this as a patent license.

@DennisClark is the above paragraph why we mark this as a category: Patent License?

[DennisClark]

@AyanSinhaMahapatra Yes, but that was because we created it before we created the CLA Category. Now that we have the new Category, this license should definitely be assigned the CLA category.

[AyanSinhaMahapatra]

@DennisClark Thanks for the input.

[AyanSinhaMahapatra]

Thanks @fviernau, merging this!