asus-laptop: use tabs to indent macros and remove unused ones

#define GPS_ON		0x100	/* GPS */

#define KEY_ON		0x200	/* Keyboard backlight */

#define ASUS_LOG    ASUS_HOTK_FILE ": "

#define ASUS_ERR    KERN_ERR    ASUS_LOG

#define ASUS_WARNING    KERN_WARNING    ASUS_LOG

#define ASUS_NOTICE KERN_NOTICE ASUS_LOG

#define ASUS_INFO   KERN_INFO   ASUS_LOG

#define ASUS_DEBUG  KERN_DEBUG  ASUS_LOG

MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");

MODULE_DESCRIPTION(ASUS_HOTK_NAME);

MODULE_LICENSE("GPL");