This is a introduction for flashlight chip MT6370

[Scope]
- Two channel for two LEDs


[Hardware Interface]
- I2C
	* For general control
	* Slave address 0x34


[Limit]
- Channel couple:
	* Torch/Strobe mode
	* Strobe mode watchdog timer

- Channel decouple:
	* Current source
	* Brightness level

- Torch Mode
	* Step current: 12.5 mA
	* Min currnet: 25 mA
	* Max current: 400 mA

- Strobe Mode
	* Step current: 12.5 mA
	* Min currnet: 25 mA
	* Max current: 1500 mA
	* Max current for two channel: 2500 mA
	* Min protected timeout: 64 ms
	* Max protected timeout: 2432 ms

