Cross-subsystem Changes:

- Add Elkhartlake (Gen11) stolen memory early quirks (Rodrigo)

Driver Changes:

- Mark all Elkhartlake ports as combo phys (Bob)
- Enable 10bit gamma for Ivybridge and newer platforms (Ville)
- Expose the legacy LUT via the GAMMA_LUT/GAMMA_LUT_SIZE props on gen2/3 (Ville)
- Skip modeset for cdclk changes if possible (Ville, Abhay, Imre)
- Force 2*96 MHz cdclk on Geminilake/Cannonlake when audio power is enabled (Ville)
- Modularize and correct gamma/degamma/CSC code per platform (Ville)
- Fix gamma register programming (Uma)
- Avoid drm_modeset_lock() deadlock splat (Chris)
- Check cache domains for userptr on release (Chris)
- Avoid deadlock if we pwrite into mmap'd region (Chris)
- Only emit one semaphore per request to avoid exhausting ringbuf (Chris)

- Continue to clean up the uncore code (Daniele)
- Introduce sub-platform concept to organize code (Tvrtko)
- Header splitting untangling (Chris)
- Avoid using ctx->file_priv during construction (Chris)
- GuC code improvements (Robert)