wifi: rtl8xxxu: convert EN_DESC_ID of TX descriptor to le32 type

Fields of TX descriptor are little-endian order, so correct EN_DESC_ID
field to le32 type.

Fixes: b837f78f ("wifi: rtl8xxxu: add hw crypto support for AP mode")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202401161318.YtXoCkjU-lkp@intel.com/


Cc: Martin Kaistra <martin.kaistra@linutronix.de>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240116080945.20172-1-pkshih@realtek.com