V4L/DVB: gspca - stk014: Change the min and default values of the JPEG quality

	unsigned char colors;

	unsigned char lightfreq;

	u8 quality;

#define QUALITY_MIN 60

#define QUALITY_MIN 70

#define QUALITY_MAX 95

#define QUALITY_DEF 80

#define QUALITY_DEF 88

	u8 jpeg_hdr[JPEG_HDR_SZ];

};