ARM: dts: i.MX6: Use consistent node names for Engicam files

Use consistent pinctrl node names for Engicam dt files,
sufix 'grp' look consistent than actual node name

- pinctrl_gpmi_nand: gpmi-nand {
+ pinctrl_gpmi_nand: gpminandgrp {
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi

@@ -281,7 +281,7 @@ &usdhc4 {
 };
 
 &iomuxc {
-	pinctrl_audmux: audmux {
+	pinctrl_audmux: audmuxgrp {
 		fsl,pins = <
 			MX6QDL_PAD_DISP0_DAT20__AUD4_TXC  0x130b0
 			MX6QDL_PAD_DISP0_DAT21__AUD4_TXD  0x110b0

arch/arm/boot/dts/imx6qdl-icore.dtsi

@@ -274,7 +274,7 @@ &usdhc3 {
 };
 
 &iomuxc {
-	pinctrl_audmux: audmux {
+	pinctrl_audmux: audmuxgrp {
 		fsl,pins = <
 			MX6QDL_PAD_DISP0_DAT20__AUD4_TXC  0x130b0
 			MX6QDL_PAD_DISP0_DAT21__AUD4_TXD  0x110b0
@@ -313,7 +313,7 @@ MX6QDL_PAD_KEY_ROW4__FLEXCAN2_RX 0x1b020
 		>;
 	};
 
-	pinctrl_gpmi_nand: gpmi-nand {
+	pinctrl_gpmi_nand: gpminandgrp {
 		fsl,pins = <
 			MX6QDL_PAD_NANDF_CLE__NAND_CLE     0xb0b1
 			MX6QDL_PAD_NANDF_ALE__NAND_ALE     0xb0b1

arch/arm/boot/dts/imx6ul-geam.dts

@@ -292,7 +292,7 @@ MX6UL_PAD_UART2_CTS_B__FLEXCAN2_TX	0x1b020
 		>;
 	};
 
-	pinctrl_gpmi_nand: gpmi-nand {
+	pinctrl_gpmi_nand: gpminandgrp {
 		fsl,pins = <
 			MX6UL_PAD_NAND_CLE__RAWNAND_CLE         0xb0b1
 			MX6UL_PAD_NAND_ALE__RAWNAND_ALE         0xb0b1

arch/arm/boot/dts/imx6ul-isiot.dtsi

@@ -239,7 +239,7 @@ MX6UL_PAD_ENET2_RX_EN__GPIO2_IO10	0x1b0b0
 		>;
 	};
 
-	pinctrl_gpmi_nand: gpmi-nand {
+	pinctrl_gpmi_nand: gpminandgrp {
 		fsl,pins = <
 			MX6UL_PAD_NAND_CLE__RAWNAND_CLE         0xb0b1
 			MX6UL_PAD_NAND_ALE__RAWNAND_ALE         0xb0b1