converted yuv422 to RGB 24/32 and converted RGB 24/32to yuv422 based on logitech co.

这是基于logitech c270的视频摄象头c代码，能采集一帧图像并保存。此代码能在s3c6410,s3c2410,s3c2440等多个开发板下运行。-This is the Logitech c270 video camera based on C code, can collect one frame of image and save. This code in S3C6410, S3C2410, S3C2440 and so on many development board oper