shell: modules: kernel_service: deprecate log_level

Log_level command is a duplicate of 'log enable' command from
the logging command set (enabled by CONFIG_LOG_CMDS=y). Adding
warning about deprecation as 'log enable' is recommended since
it has more features (e.g. autocompletion).

Signed-off-by: Krzysztof Chruściński <[email protected]>

Author: nordic-krch

subsys/shell/modules/kernel_service/log-level.c

@@ -17,6 +17,8 @@ static int cmd_kernel_log_level_set(const struct shell *sh, size_t argc, char **
 
 	uint8_t severity = shell_strtoul(argv[2], 10, &err);
 
+	shell_warn(sh, "This command is deprecated as it is a duplicate. "
+		       "Use 'log enable' command from logging commands set.");
 	if (err) {
 		shell_error(sh, "Unable to parse log severity (err %d)", err);