Add void casts to unused parameters

stm-firmware/shell.c

@@ -651,6 +651,8 @@ shellmatta_retCode_t shell_cmd_overtemp_cfg(const shellmatta_handle_t handle, co
 	char option;
 	bool temp_passed = false;
 	bool persistent = false;
+	(void)args;
+	(void)len;
 
 	static const shellmatta_opt_long_t options[] = {
 		{"persistent", 'p', SHELLMATTA_OPT_ARG_NONE},
@@ -691,6 +693,8 @@ shellmatta_retCode_t shell_cmd_execute(const shellmatta_handle_t handle, const c
 	static bool running = false;
 	char *data;
 	uint32_t dlen;
+	(void)args;
+	(void)len;
 
 	shellmatta_read(handle, &data, &dlen);