[TF-M] Code freeze heads up for TF-M v1.2

Hi All,

This is a reminder and heads up that TF-Mv1.2 release is planned for the end of November and TF-M code repository is aimed for freeze on Nov 4th (Wed), tagged by TF-Mv1.2-RC1 for testing. Availability of the tag will be notified via this mailing list.

Thanks, Anton