watchdog: it8712f_wdt: Add comments for config/control register names

#define WDT_CONFIG	0x72	/* WDT Register: Configuration */

#define WDT_TIMEOUT	0x73	/* WDT Register: Timeout Value */

#define WDT_RESET_GAME	0x10

#define WDT_RESET_KBD	0x20

#define WDT_RESET_MOUSE	0x40

#define WDT_RESET_CIR	0x80

#define WDT_RESET_GAME	0x10	/* Reset timer on read or write to game port */

#define WDT_RESET_KBD	0x20	/* Reset timer on keyboard interrupt */

#define WDT_RESET_MOUSE	0x40	/* Reset timer on mouse interrupt */

#define WDT_RESET_CIR	0x80	/* Reset timer on consumer IR interrupt */

#define WDT_UNIT_SEC	0x80	/* If 0 in MINUTES */

#define WDT_OUT_PWROK	0x10

#define WDT_OUT_KRST	0x40

#define WDT_OUT_PWROK	0x10	/* Pulse PWROK on timeout */

#define WDT_OUT_KRST	0x40	/* Pulse reset on timeout */

static int superio_inb(int reg)

{