drm/i915/error: fix i915_capture_error_state() kernel-doc

drivers/gpu/drm/i915/i915_gpu_error.c:2174: warning: Function parameter or member 'dump_flags' not described in 'i915_capture_error_state'
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20524292b002800975d82d23b5bd47da878f1733.1683041799.git.jani.nikula@intel.com

drivers/gpu/drm/i915/i915_gpu_error.c

@@ -2167,7 +2167,7 @@ void i915_error_state_store(struct i915_gpu_coredump *error)
  * i915_capture_error_state - capture an error record for later analysis
  * @gt: intel_gt which originated the hang
  * @engine_mask: hung engines
- *
+ * @dump_flags: dump flags
  *
  * Should be called when an error is detected (either a hang or an error
  * interrupt) to capture error state from the time of the error.  Fills