Zigbee and BLE coex support using NCS v1.3.0

Question

Hi Team, 
 
 I am using nRF Connect SDK v1.3.0 tag for nRF52840 DK. 
 I am trying to integrate BLE HCI UART project files into Zigbee light switch project. 
 I have attached modified 
 app.overlay 
 /* Copyright (c) 2020 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/ {
	chosen {
 zephyr,entropy = &rng;
	};
};


&uart0 {
	compatible = "nordic,nrf-uart";
	current-speed = <1000000>;
	status = "okay";
};
 
 prj.conf 
 #
# Copyright (c) 2020 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-BSD-5-Clause-Nordic
#

CONFIG_NCS_SAMPLES_DEFAULTS=y

CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_SERIAL=y
CONFIG_GPIO=y

# Make sure printk is not printing to the UART console
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y

CONFIG_HEAP_MEM_POOL_SIZE=2048

CONFIG_ZIGBEE=y
CONFIG_ZIGBEE_ROLE_END_DEVICE=y

# Enable bonding
CONFIG_NVS=y

# Enable DK LED and Buttons library
CONFIG_DK_LIBRARY=y

# This example requires more workqueue stack
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048

# Enable nRF ECB driver
CONFIG_CRYPTO=y
CONFIG_CRYPTO_NRF_ECB=y

# Cryptocell is not supported through CSPRNG driver API: NCSDK-4813
CONFIG_ENTROPY_CC310=n




CONFIG_UART_0_NRF_FLOW_CONTROL=y
CONFIG_MAIN_STACK_SIZE=512
CONFIG_BT_MAX_CONN=16
CONFIG_BT_TINYCRYPT_ECC=n
CONFIG_BT_CTLR_DTM_HCI=y
CONFIG_BT_CTLR_ASSERT_HANDLER=y
CONFIG_BT=y
CONFIG_BT_HCI_RAW=y
CONFIG_BT_HCI_RAW_H4=y
CONFIG_BT_HCI_RAW_H4_ENABLE=y
CONFIG_STDOUT_CONSOLE=n 
 files in Zigbee light switch project with configuration from Zephyr BLE HCI UART. 
 Attached error while generating SES project. 
 
 Please point out the integration issue. 
 Please take a look at the attached Zigbee light switch modified project. 
 light_switch.rar 
 Thanks 
 Sridhar