bluetooth: host: Make reassembling state not in reassembling

After zephyrproject-rtos#74639

If we receive corrupted adv report, will set state to discarding,
but if next adv report is new advertiser, will lead ASSERT.

Signed-off-by: Lingao Meng <menglingao@xiaomi.com>

subsys/bluetooth/host/scan.c

@@ -880,7 +880,7 @@ void bt_hci_le_adv_ext_report(struct net_buf *buf)
 			 * this is the first report from the new advertiser.
 			 * Initialize the new advertiser.
 			 */
-			__ASSERT_NO_MSG(reassembling_advertiser.state == FRAG_ADV_INACTIVE);
+			__ASSERT_NO_MSG(reassembling_advertiser.state != FRAG_ADV_REASSEMBLING);
 			init_reassembling_advertiser(&evt->addr, evt->sid);
 		}