Add set resolution macro.
#define COM7_FMT_RGB 0x02 /* Output format RGB */
#define COM7_FMT_R_BAYER 0x03 /* Output format Bayer RAW */
#define COM7_SET_FMT(r, x) ((r&0xFC)|((x&0x3)<<0))
+#define COM7_SET_RES(r, x) ((r&0xBF)|(x))
#define COM8 0x13 /* Common Control 8 */
#define COM8_FAST_AUTO 0x80 /* Enable fast AGC/AEC algorithm */
