iio: accel: mma9553: use GENMASK

Use GENMASK instead of BIT or direct value to
define a mask.
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Suggested-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/accel/mma9553.c

@@ -62,8 +62,8 @@
 #define MMA9553_MASK_STATUS_STEPCHG		BIT(13)
 #define MMA9553_MASK_STATUS_ACTCHG		BIT(12)
 #define MMA9553_MASK_STATUS_SUSP		BIT(11)
-#define MMA9553_MASK_STATUS_ACTIVITY		(BIT(10) | BIT(9) | BIT(8))
-#define MMA9553_MASK_STATUS_VERSION		0x00FF
+#define MMA9553_MASK_STATUS_ACTIVITY		GENMASK(10, 8)
+#define MMA9553_MASK_STATUS_VERSION		GENMASK(7, 0)
 
 #define MMA9553_REG_STEPCNT			0x02
 #define MMA9553_REG_DISTANCE			0x04