I2C clock extension

[Description]
I2C从设备在忙时会拉低clock信号通知主设备，闲时再释放clk信号
但是目前SDK默认无法支持clock extension，导致通信失败

[Solution]
可以通过如下修改打开clock extension功能：
修改gva\driver\chip\MT2523\inc\hal_i2c_master_internal.h如下code，实现enable clock
extension
#define I2C_CONTROL_OPEN_DRAIN_SEND_POLLING (0x0028)
#define I2C_CONTROL_OPEN_DRAIN_SEND_DMA (0x002C)
#define I2C_CONTROL_OPEN_DRAIN_RECEIVE_POLLING (0x0028)
#define I2C_CONTROL_OPEN_DRAIN_RECEIVE_DMA (0x002C)
#define I2C_CONTROL_OPEN_DRAIN_SEND_TO_RECEIVE_POLLING (0x007A)
#define I2C_CONTROL_OPEN_DRAIN_SEND_TO_RECEIVE_DMA (0x007E)
#define I2C_CONTROL_OPEN_DRAIN_SEND_DMA_EXTEND (0x002E)
#define I2C_CONTROL_OPEN_DRAIN_RECEIVE_DMA_EXTEND (0x002E)
#define I2C_CONTROL_OPEN_DRAIN_SEND_TO_RECEIVE_DMA_EXTEND (0x007E)