drm/i915/display: add mobile platform group
Identify mobile platforms separately in display, using the platform
group mechanism. This enables dropping the dependency on i915_drv.h
IS_MOBILE() from display code.
v2: Make snb_display static (kernel test robot)
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/2389fd58446e83a79ec57bc0b037679662037b9e.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>