wifi: ath12k: dp_mon: clean up some inconsistent indentings

drivers/net/wireless/ath/ath12k/dp_mon.c:532 ath12k_dp_mon_parse_he_sig_su() warn: inconsistent indenting
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4062Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230215012548.90989-1-yang.lee@linux.alibaba.com