media: i2c: Tweak default PDAF gain table in imx708 driver

After analyzing more Raspberry Pi V3 cameras, adjust the
default PDAF shield-pixel gain tables (they can still be
overridden by camera OTP where programmed).

Signed-off-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>

Author: njhollinghurst

drivers/media/i2c/imx708.c

@@ -192,8 +192,8 @@ struct imx708_mode {
 
 /* Default PDAF pixel correction gains */
 static const u8 pdaf_gains[2][9] = {
-	{ 0x4c, 0x4c, 0x4c, 0x46, 0x3e, 0x38, 0x35, 0x35, 0x35 },
-	{ 0x35, 0x35, 0x35, 0x38, 0x3e, 0x46, 0x4c, 0x4c, 0x4c }
+	{ 0x4c, 0x4c, 0x4c, 0x46, 0x3e, 0x39, 0x36, 0x36, 0x36 },
+	{ 0x36, 0x36, 0x36, 0x39, 0x3e, 0x46, 0x4c, 0x4c, 0x4c }
 };
 
 /* Link frequency setup */