[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.