drm/i915/dpt: replace GEM_BUG_ON() with drm_WARN_ON()

Avoid using GEM_BUG_ON() in display code.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/17e70eaf967bdfe99111cdbb3bcf6aa2f0b0e837.1694684044.git.jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_dpt.c

@@ -29,7 +29,7 @@ static inline struct i915_dpt *
 i915_vm_to_dpt(struct i915_address_space *vm)
 {
 	BUILD_BUG_ON(offsetof(struct i915_dpt, vm));
-	GEM_BUG_ON(!i915_is_dpt(vm));
+	drm_WARN_ON(&vm->i915->drm, !i915_is_dpt(vm));
 	return container_of(vm, struct i915_dpt, vm);
 }