bluetooth: host: fix hang issue caused by consecutive bt disable commands

- add BT_DEV_DISABLE flag to BT_DEV_PERSISTENT_FLAGS to
  protect consecutive bt disable from running

Signed-off-by: Ying Zhang <ying.zhang_2@nxp.com>

Author: zhaynxp

subsys/bluetooth/host/hci_core.h

@@ -85,7 +85,8 @@ enum {
 
 /* Flags which should not be cleared upon HCI_Reset */
 #define BT_DEV_PERSISTENT_FLAGS (BIT(BT_DEV_ENABLE) | \
-				 BIT(BT_DEV_PRESET_ID))
+				 BIT(BT_DEV_PRESET_ID) | \
+				 BIT(BT_DEV_DISABLE))
 
 #if defined(CONFIG_BT_EXT_ADV_LEGACY_SUPPORT)
 /* Check the feature bit for extended or legacy advertising commands */