modify sensors driver to support selecting all items one time

include/linux/sensor-dev.h

@@ -52,6 +52,7 @@ enum sensor_id {
 	ACCEL_ID_ADXL34X,
 	ACCEL_ID_MMA8450,
 	ACCEL_ID_MMA845X,
+	ACCEL_ID_MMA7660,
 	ACCEL_ID_MPU6050,
 
 	COMPASS_ID_ALL,
@@ -84,6 +85,7 @@ enum sensor_id {
 
 	PRESSURE_ID_ALL,
 	PRESSURE_ID_BMA085,
+	SENSOR_NUM_ID,
 };