thermal: renesas: rzg3e: Remove stale @trim_offset kernel-doc entry

The trim_offset field was removed from struct rzg3e_thermal_priv but
its kernel-doc entry was left behind. Remove it to fix the mismatch.

Signed-off-by: John Madieu <john.madieu.xa@bp.renesas.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
Link: https://patch.msgid.link/20260409125916.2244241-1-john.madieu.xa@bp.renesas.com

Author: John Madieu

drivers/thermal/renesas/rzg3e_thermal.c

@@ -93,7 +93,6 @@ struct rzg3e_thermal_info {
  * @info: chip type specific information
  * @trmval0: calibration value 0 (b)
  * @trmval1: calibration value 1 (c)
- * @trim_offset: offset for trim registers in syscon
  * @lock: protects hardware access during conversions
  */
 struct rzg3e_thermal_priv {