Target: Bonito3a84w
1. add debug HT RX signals in loongson3_HT_init.S (disabled)
2. change clock frequency to 800/533
3. change the DDR3 params and pass the memory test
4. fix the conf files (AUTO_DDR_CONFIG not supported yet)
5. fix the command files about kernel parameters
6. fix the i2c read by GPIO
Change-Id: I6ceba17f5f149e16615caec2fb9e0726d2840b3e