drivers: bluetooth: siwx917: Fix issue with controller to host flow control

The SiWx917 BLE controller currently does not support
HCI Command 0x0C35 i.e. Host Number of Completed Packets Command
Disabling the ACL Flow Control avoids sending this command during
SMP Pairing process and therefore avoiding an ASSERT

Signed-off-by: Ramana Gudipudi <[email protected]>

Author: gudipudiramanakumar

drivers/bluetooth/hci/Kconfig

@@ -148,6 +148,10 @@ config BT_SILABS_SIWX91X
 	help
 	  Use Silicon Labs Wiseconnect 3.x Bluetooth library to connect to the controller.
 
+	# SiWx917 BLE controller currently does not support HCI Command: Host Number of Completed Packets
+	configdefault BT_HCI_ACL_FLOW_CONTROL
+		default n if BT_SILABS_SIWX91X
+
 config BT_USERCHAN
 	bool
 	depends on (BOARD_NATIVE_POSIX || BOARD_NATIVE_SIM)