arm64: dts: allwinner: h616: Fix I2C0 pins

Currently we specify the pins for the I2C0 function as PI6 and PI7, even
though they are actually PI5 and PI6. Linux' pinctrl driver and the H616
user manual confirm this.

Fix the pin names in the pins property. None of the existing DTs in the
tree seems to use I2C0, which explains why this went unnoticed.

Fixes: 0d17c8651188 ("arm64: dts: allwinner: Add Allwinner H616 .dtsi file")
Signed-off-by: Andre Przywara <[e-mail]>
Acked-by: Jernej Skrabec <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jernej Skrabec <[e-mail]>

arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi

···
 			};
 
 			i2c0_pins: i2c0-pins {
-				pins = "PI6", "PI7";
+				pins = "PI5", "PI6";
 				function = "i2c0";
 			};