rtc: pcf8523: use BIT

#define DRIVER_NAME "rtc-pcf8523"

#define REG_CONTROL1 0x00

#define REG_CONTROL1_CAP_SEL (1 << 7)

#define REG_CONTROL1_STOP    (1 << 5)

#define REG_CONTROL1_CAP_SEL BIT(7)

#define REG_CONTROL1_STOP    BIT(5)

#define REG_CONTROL3 0x02

#define REG_CONTROL3_PM_BLD (1 << 7) /* battery low detection disabled */

#define REG_CONTROL3_PM_VDD (1 << 6) /* switch-over disabled */

#define REG_CONTROL3_PM_DSM (1 << 5) /* direct switching mode */

#define REG_CONTROL3_PM_BLD BIT(7) /* battery low detection disabled */

#define REG_CONTROL3_PM_VDD BIT(6) /* switch-over disabled */

#define REG_CONTROL3_PM_DSM BIT(5) /* direct switching mode */

#define REG_CONTROL3_PM_MASK 0xe0

#define REG_CONTROL3_BLF (1 << 2) /* battery low bit, read-only */

#define REG_CONTROL3_BLF BIT(2) /* battery low bit, read-only */

#define REG_SECONDS  0x03

#define REG_SECONDS_OS (1 << 7)

#define REG_SECONDS_OS BIT(7)

#define REG_MINUTES  0x04

#define REG_HOURS    0x05