Build error: undefined reference to `z_nrf_clock_control_lf_on'

[marsal]

Hi, could you please point me towards how to solve the following:

CMake Warning at C:/ncs/v2.6.2/zephyr/CMakeLists.txt:862 (message):
No SOURCES given to Zephyr library: drivers__clock_control

Excluding target from build.

At the build end, this ends in "undefined reference to `z_nrf_clock_control_lf_on'" build error

Thank you

nrf9161, not sure if this could be related to:  Build error: 'HUK_KEYSLOT_MEXT' undeclared (another ticket posted) 
The prj.conf:

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CONFIG_CLOCK_CONTROL=y

#### "debugging" ##########################################

### debug network timing

# CONFIG_NET_LOG=y

### debug MQTT timing

# CONFIG_MQTT_LOG_LEVEL_DBG=y

### debug optimizations (-Og)

CONFIG_DEBUG=y

CONFIG_DEBUG_OPTIMIZATIONS=y

CONFIG_DEBUG_THREAD_INFO=y

### to try to debug unwanted soft resets (n=not resetting):

CONFIG_RESET_ON_FATAL_ERROR=n

# Enable SEGGER RTT

CONFIG_LOG=y

CONFIG_USE_SEGGER_RTT=y

CONFIG_LOG_BACKEND_RTT=y

# Increase the log buffer size (in bytes)

CONFIG_LOG_BUFFER_SIZE=4096

# Enable asynchronous logging (optional, for better performance)

CONFIG_LOG_MODE_DEFERRED=y

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

CONFIG_CLOCK_CONTROL=y

#### "debugging" ##########################################
### debug network timing
# CONFIG_NET_LOG=y
### debug MQTT timing
# CONFIG_MQTT_LOG_LEVEL_DBG=y
### debug optimizations (-Og)
CONFIG_DEBUG=y
CONFIG_DEBUG_OPTIMIZATIONS=y
CONFIG_DEBUG_THREAD_INFO=y
### to try to debug unwanted soft resets (n=not resetting):
CONFIG_RESET_ON_FATAL_ERROR=n
# Enable SEGGER RTT
CONFIG_LOG=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_LOG_BACKEND_RTT=y
# Increase the log buffer size (in bytes)
CONFIG_LOG_BUFFER_SIZE=4096
# Enable asynchronous logging (optional, for better performance)
CONFIG_LOG_MODE_DEFERRED=y

CONFIG_TFM_CRYPTO_KEY_DERIVATION_MODULE_ENABLED=y
#
# CONFIG_LOG_MODE_IMMEDIATE=y
#
CONFIG_NVS_LOG_LEVEL_DBG=y
# CPU load
#CONFIG_CPU_LOAD_LOG_PERIODIC=y
#CONFIG_CPU_LOAD_LOG_INTERVAL=1000

### debugging threads
CONFIG_THREAD_ANALYZER=y
CONFIG_THREAD_ANALYZER_AUTO=y

### NVS
CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_NVS=y
CONFIG_REBOOT=y
CONFIG_MPU_ALLOW_FLASH_WRITE=y

# CONFIG_REBOOT=n
#
### SECURE TFM logging
### disabling logging of TF-M
# CONFIG_TFM_LOG_LEVEL_SILENCE=y
### forward TF-M secure logging to the same UART as application logging (comment the previous)
CONFIG_TFM_SECURE_UART=y
CONFIG_TFM_SECURE_UART_SHARE_INSTANCE=y
CONFIG_TFM_SECURE_UART0=y
CONFIG_TFM_PARTITION_LOG_LEVEL_DEBUG=y
CONFIG_TFM_SPM_LOG_LEVEL_DEBUG=y
# Dump exception info. Must be combined with enabling log output.
CONFIG_TFM_EXCEPTION_INFO_DUMP=y
#############################################################

# CONFIG_NEWLIB_LIBC_NANO=n

# Enable snprintf float
CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y

### Possible solution for Fatal error???
# Don't use the minimal TF-M configuration as that doesn't support logging
CONFIG_TFM_PROFILE_TYPE_NOT_SET=y

### Memory
CONFIG_MAIN_STACK_SIZE=2048
CONFIG_HEAP_MEM_POOL_SIZE=4096
CONFIG_ISR_STACK_SIZE=4096

# try to increase MODEM library heap size:
# CONFIG_NRF_MODEM_LIB_HEAP_SIZE=4096

# Modem trace
CONFIG_AT_HOST_LIBRARY=y

# uart
CONFIG_UART_ASYNC_API=y
# ! the following must be done not to loosing RX characters: assigning timer 2 to RX processing:
CONFIG_UART_1_NRF_HW_ASYNC=y
CONFIG_UART_1_NRF_HW_ASYNC_TIMER=2
# if dynamic uart configuration needed
CONFIG_UART_USE_RUNTIME_CONFIGURE=y

# Newlib
CONFIG_NEWLIB_LIBC=y

# Networking
CONFIG_NETWORKING=y
CONFIG_NET_NATIVE=n
CONFIG_NET_SOCKETS_OFFLOAD=y
CONFIG_NET_SOCKETS=y
CONFIG_NET_SOCKETS_POSIX_NAMES=y

# Modem library
CONFIG_NRF_MODEM_LIB=y

# LTE link control
CONFIG_LTE_LINK_CONTROL=y
CONFIG_LTE_NETWORK_MODE_LTE_M_NBIOT=y

# MQTT
CONFIG_MQTT_LIB=y
CONFIG_MQTT_CLEAN_SESSION=y

#ADC
CONFIG_ADC=y

#I2C, IMU
CONFIG_I2C=y