Fix SPEC file import information from CentOS as MIT

[jslobodzian]

A number of SPEC files were imported from CentOS. The MAP file mistakenly indicated that these SPEC files were imported from CentOS under the GPLv2 license. However, a closer reading of the centos policy (https://centos.org/legal/licensing-policy/#licensed-repositories), the definition section indicates that: " “Code” means software code, RPM spec files..." and the "Code Contributions" section later in the document indicates "The Default License for Contributions of Code is the MIT license..."

The GPLv2 license under the "Distributions" section was conflated with "Code".

This PR updates the map file to reflect that the imported SPEC files were imported under MIT, not GPLv2