.azurepipelines: Add DynamicTablesPkg to CI matrix
    
    Add DynamicTablesPkg to the Core CI matrix.
    
    Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
    Suggested-by: Sean Brogan <sean.brogan@microsoft.com>
    Reviewed-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
    Reviewed-by: Shenglei Zhang <shenglei.zhang@intel.com>