arm64: dts: lx2160a: remove duplicate pinmux nodes

[ Upstream commit 325ca51 ]

LX2160A pinmux is done in groups by various length bitfields within
configuration registers.

The pinmux nodes i2c7-scl-pins and i2c7-scl-gpio-pins are duplicates of
i2c6-scl-gpio and i2c6-scl-gpio-pins, writing to the same register and
bits.

These two i2c buses i2c6/i2c7 (IIC7/IIC8) are configured together in
register RCWSR13 bits 3-0.

Drop the duplicate node name and change references to the i2c6 node.

Fixes: 8a1365c ("arm64: dts: lx2160a: add pinmux and i2c gpio to support bus recovery")
Signed-off-by: Josua Mayer <josua@solid-run.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: Josua-SR

arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi

@@ -862,8 +862,8 @@
 			clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
 					    QORIQ_CLK_PLL_DIV(16)>;
 			pinctrl-names = "default", "gpio";
-			pinctrl-0 = <&i2c7_scl>;
-			pinctrl-1 = <&i2c7_scl_gpio>;
+			pinctrl-0 = <&i2c6_scl>;
+			pinctrl-1 = <&i2c6_scl_gpio>;
 			scl-gpios = <&gpio1 18 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 			status = "disabled";
 		};
@@ -1781,14 +1781,6 @@
 				pinctrl-single,bits = <0x4 0x1 0x7>;
 			};
 
-			i2c7_scl: i2c7-scl-pins {
-				pinctrl-single,bits = <0x4 0x2 0x7>;
-			};
-
-			i2c7_scl_gpio: i2c7-scl-gpio-pins {
-				pinctrl-single,bits = <0x4 0x1 0x7>;
-			};
-
 			i2c0_scl: i2c0-scl-pins {
 				pinctrl-single,bits = <0x8 0x0 (0x1 << 10)>;
 			};