samples: wifi: ble_coex: Fix Bluetooth LE connection failure

[SHEL-3526] Address Bluetooth LE connection failures caused by
prolonged link blockage due to interference or priority conflicts
during simultaneous Wi-Fi and Bluetooth LE traffic.
Increasing the supervision timeout mitigates connection failures
due to timeouts.

Signed-off-by: Murali Thokala <[email protected]>

Author: muraliThokala

samples/wifi/ble_coex/src/bt_throughput_test.c

@@ -28,7 +28,7 @@
 #include "bt_throughput_test.h"
 
 #define CONN_LATENCY 0
-#define SUPERVISION_TIMEOUT 1000
+#define SUPERVISION_TIMEOUT MIN(CONFIG_BLE_TEST_DURATION, 32000)
 
 #define DEVICE_NAME	CONFIG_BT_DEVICE_NAME
 #define DEVICE_NAME_LEN (sizeof(DEVICE_NAME) - 1)