A CDHP an industry term, not an IRS term. A CDHP generally combines a high deductible health plan and a tax-advantaged savings tool, such as a Health Savings Account (but could be HRA or FSA). If your health plan is not an HDHP, then your employer should not have offered to help you set up an HSA (I assume they did).
Contact your HR or benefits department and confirm whether or not you are in an HDHP (that's the health plan itself). If you are, then answer the HDHP questions in TurboTax as "yes". Otherwise, ask your employer why they are contributing to your HSA when they know you are not eligible.
