fix: update from upstream

See https://github.com/nrfconnect/sdk-nrf/tree/f3d31cc926d75ef5933259c2e998d34794a225bc/applications/asset_tracker_v2

Author: github-actions[bot]

Kconfig

@@ -9,14 +9,6 @@
 config UART_INTERRUPT_DRIVEN
 	default y if SERIAL
 
-# Asset Tracker v2 requires the default logging mode as LOG_MODE_IMMEDIATE because
-# a) LOG_MODE_DEFERRED does not print floating point numbers.
-#	 See : https://github.com/zephyrproject-rtos/zephyr/issues/18351
-# b) Using LOG2_MODE_DEFERRED results in missing logs in certain situations. Ref: NCSIDB-630
-choice LOG_MODE
-	default LOG_MODE_IMMEDIATE
-endchoice
-
 menu "Asset Tracker v2"
 
 config ASSET_TRACKER_V2_APP_VERSION