Rename I2C driver and watch dog function.

Signed-off-by: cctsao1008 <chiacheng.tsao@gmail.com>
Rename I2C driver and watch dog function.

Signed-off-by: cctsao1008 <chiacheng.tsao@gmail.com>
Separate SPI driver form Petit FAT File System Module.

Signed-off-by: cctsao1008 <chiacheng.tsao@gmail.com>