chore(nordic): replace printk with log

diff --git a/nordic/trezor/trezor-ble/prj.conf b/nordic/trezor/trezor-ble/prj.conf
index ecdaddbb..cd8f50b2 100644
--- a/nordic/trezor/trezor-ble/prj.conf
+++ b/nordic/trezor/trezor-ble/prj.conf
@@ -108,7 +108,6 @@ CONFIG_POLL=y
 CONFIG_LOG=n
 CONFIG_UART_CONSOLE=n
 CONFIG_LOG_BACKEND_UART=n
-CONFIG_LOG_PRINTK=n
 
 CONFIG_NANOPB=n
 
diff --git a/nordic/trezor/trezor-ble/src/ble/pairing.c b/nordic/trezor/trezor-ble/src/ble/pairing.c
index 8e67b158..e8ed5a80 100644
--- a/nordic/trezor/trezor-ble/src/ble/pairing.c
+++ b/nordic/trezor/trezor-ble/src/ble/pairing.c
@@ -143,13 +143,13 @@ void pairing_reset(void) {
 bool pairing_init(void) {
   int err = bt_conn_auth_cb_register(&conn_auth_callbacks);
   if (err) {
-    printk("Failed to register authorization callbacks.\n");
+    LOG_ERR("Failed to register authorization callbacks.");
     return false;
   }
 
   err = bt_conn_auth_info_cb_register(&conn_auth_info_callbacks);
   if (err) {
-    printk("Failed to register authorization info callbacks.\n");
+    LOG_ERR("Failed to register authorization info callbacks.");
     return false;
   }
 
diff --git a/nordic/trezor/trezor-ble/src/trz_comm/spi.c b/nordic/trezor/trezor-ble/src/trz_comm/spi.c
index a0d6d1ed..80be37db 100644
--- a/nordic/trezor/trezor-ble/src/trz_comm/spi.c
+++ b/nordic/trezor/trezor-ble/src/trz_comm/spi.c
@@ -107,10 +107,10 @@ void spi_init(void) {
 
   spi_dev = DEVICE_DT_GET(MY_SPI_MASTER);
   if (!device_is_ready(spi_dev)) {
-    printk("SPI master device not ready!\n");
+    LOG_WRN("SPI master device not ready!");
   }
   if (!device_is_ready(spim_cs.gpio.port)) {
-    printk("SPI master chip select device not ready!\n");
+    LOG_WRN("SPI master chip select device not ready!");
   }
 
   k_sem_give(&spi_comm_ok);
@@ -118,14 +118,14 @@ void spi_init(void) {
 
 bool spi_send(uint8_t service_id, const uint8_t *data, uint32_t len) {
   if (len > MAX_SPI_DATA_SIZE) {
-    printk("Too big data\n");
+    LOG_WRN("Too big data");
     return false;
   }
 
   trz_packet_t *tx = k_malloc(sizeof(*tx));
 
   if (tx == NULL) {
-    printk("Not able to allocate SPI send data buffer\n");
+    LOG_WRN("Not able to allocate SPI send data buffer");
     return false;
   }
 
@@ -162,7 +162,7 @@ void spi_thread(void) {
     uint8_t *rx_data = k_malloc(PACKET_DATA_SIZE);
 
     if (rx_data == NULL) {
-      printk("Not able to allocate SPI receive data buffer\n");
+      LOG_WRN("Not able to allocate SPI receive data buffer");
       k_free(buf);
       continue;
     }
@@ -187,7 +187,7 @@ void spi_thread(void) {
     }
 
     if (spi_transceive(spi_dev, &spi_cfg, txp, &rx) != 0) {
-      printk("SPI Data not sent\n");
+      LOG_WRN("SPI Data not sent");
     }
 
     spi_packet_t *rx_msg = (spi_packet_t *)rx_data;
@@ -198,7 +198,7 @@ void spi_thread(void) {
       process_rx_msg(rx_msg->service_id & 0xF, rx_msg->data, rx_msg->msg_len);
     } else {
       if (rx_msg->service_id != 0) {
-        printk("SPI RX invalid data\n");
+        LOG_WRN("SPI RX invalid data");
       }
     }
 
diff --git a/nordic/trezor/trezor-ble/src/trz_comm/uart.c b/nordic/trezor/trezor-ble/src/trz_comm/uart.c
index bc572d02..fc2d7bb9 100644
--- a/nordic/trezor/trezor-ble/src/trz_comm/uart.c
+++ b/nordic/trezor/trezor-ble/src/trz_comm/uart.c
@@ -294,6 +294,6 @@ void uart_power_down(void) {
   /* Power down the UART device */
   err = pm_device_action_run(uart, PM_DEVICE_ACTION_SUSPEND);
   if (err) {
-    printk("pm_device_action_run() failed (%d)\n", err);
+    LOG_ERR("pm_device_action_run() failed (%d)", err);
   }
 }