[nrfconnect] Added LOG dependency for CHIP_APP_LOG_LEVEL (#24279)

CHIP_APP_LOG_LEVEL tries to set default to LOG_DEFAULT_LEVEL,
but if LOG is disabled for release build the assembler will fail
to process it.

Added LOG dependency to make sure that LOG_DEFAULT_LEVEL
exists before using it.

config/nrfconnect/chip-module/Kconfig

@@ -25,6 +25,7 @@ config CHIP_DEVICE_VENDOR_NAME
 config CHIP_APP_LOG_LEVEL
 	int "Set logging level in application"
 	default LOG_DEFAULT_LEVEL
+	depends on LOG
 	help
 	  Sets the logging level in Matter application. 
 	  This config should be used only within application.