[media] adv7604: Don't put info string arrays on the stack

We do not want to modify the info string arrays ever, so no need to
waste stack space for them. While we are at it also make them const.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/i2c/adv7604.c

@@ -1882,13 +1882,13 @@ static int adv7604_log_status(struct v4l2_subdev *sd)
 	struct stdi_readback stdi;
 	u8 reg_io_0x02 = io_read(sd, 0x02);
 
-	char *csc_coeff_sel_rb[16] = {
+	static const char * const csc_coeff_sel_rb[16] = {
 		"bypassed", "YPbPr601 -> RGB", "reserved", "YPbPr709 -> RGB",
 		"reserved", "RGB -> YPbPr601", "reserved", "RGB -> YPbPr709",
 		"reserved", "YPbPr709 -> YPbPr601", "YPbPr601 -> YPbPr709",
 		"reserved", "reserved", "reserved", "reserved", "manual"
 	};
-	char *input_color_space_txt[16] = {
+	static const char * const input_color_space_txt[16] = {
 		"RGB limited range (16-235)", "RGB full range (0-255)",
 		"YCbCr Bt.601 (16-235)", "YCbCr Bt.709 (16-235)",
 		"xvYCC Bt.601", "xvYCC Bt.709",
@@ -1896,12 +1896,12 @@ static int adv7604_log_status(struct v4l2_subdev *sd)
 		"invalid", "invalid", "invalid", "invalid", "invalid",
 		"invalid", "invalid", "automatic"
 	};
-	char *rgb_quantization_range_txt[] = {
+	static const char * const rgb_quantization_range_txt[] = {
 		"Automatic",
 		"RGB limited range (16-235)",
 		"RGB full range (0-255)",
 	};
-	char *deep_color_mode_txt[4] = {
+	static const char * const deep_color_mode_txt[4] = {
 		"8-bits per channel",
 		"10-bits per channel",
 		"12-bits per channel",