MTK61 平台添加 gsensor ,实现计步器功能。 包括计步器算法库。计步器算法由原厂提供，已经打包成lib 了，很精准。
资源文件列表
gsensor/custom/drv/Motion_sensor/MXC400_I2C/motion_sensor_custom.c , 28854
gsensor/custom/drv/Motion_sensor/MXC400_I2C/motion_sensor_custom.h , 4367
gsensor/custom/drv/Motion_sensor/MXC400_I2C/MXC400_pedometer.h , 1178
gsensor/custom/drv/Motion_sensor/MXC400_I2C/pedometer - 副本.c , 136771
gsensor/custom/drv/Motion_sensor/MXC400_I2C/pedometer.c , 136727
gsensor/custom/drv/Motion_sensor/MXC400_I2C/pedometer.h , 33678
gsensor/custom/drv/Motion_sensor/MXC400_I2C/step_0505_v1.13_juxin.lib , 23732
gsensor/plutommi/mmi/Organizer/OrganizerSrc/pedometer_mmi.c , 42355