Improve the DTS files by removing all the leading "0x" and zeros to fix the
following dtc warnings:

Warning (unit_address_format): Node /XXX unit name should not have leading "0x"

and

Warning (unit_address_format): Node /XXX unit name should not have leading 0s

Converted using the following command:

find . -type f \( -iname *.dts -o -iname *.dtsi \) -exec sed -i -e "s/@\([0-9a-fA-FxX\.;:#]+\)\s*{/@\L\1 {/g" -e "s/@0x\(.*\) {/@\1 {/g" -e "s/@0+\(.*\) {/@\1 {/g" {} +^C

For simplicity, two sed expressions were used to solve each warnings separately.

To make the regex expression more robust a few other issues were resolved,
namely setting unit-address to lower case, and adding a whitespace before the
the opening curly brace:

https://elinux.org/Device_Tree_Linux#Linux_conventions

This will solve as a side effect warning:

Warning (simple_bus_reg): Node /XXX@<UPPER> simple-bus unit address format error, expected "<lower>"

This is a follow up to commit 4c9847b7375a ("dt-bindings: Remove leading 0x from bindings notation")

Reported-by: David Daney <redacted>
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mathieu Malaterre <redacted>
---
 arch/arm/boot/dts/imx6q-display5.dtsi | 2 +-
 arch/arm/boot/dts/imx7d.dtsi          | 2 +-
 arch/arm/boot/dts/imx7s.dtsi          | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/imx6q-display5.dtsi b/arch/arm/boot/dts/imx6q-display5.dtsi
index 4084de43d4d9..09085fde3341 100644
--- a/arch/arm/boot/dts/imx6q-display5.dtsi
+++ b/arch/arm/boot/dts/imx6q-display5.dtsi

@@ -255,7 +255,7 @@
 	pinctrl-0 = <&pinctrl_i2c1>;
 	status = "okay";
 
-	codec: tfa9879@6C {
+	codec: tfa9879@6c {
 		#sound-dai-cells = <0>;
 		compatible = "nxp,tfa9879";
 		reg = <0x6C>;

diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index 4d308d17f040..369d5a166b3e 100644
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi

@@ -129,7 +129,7 @@
 		status = "disabled";
 	};
 
-	pcie: pcie@0x33800000 {
+	pcie: pcie@33800000 {
 		compatible = "fsl,imx7d-pcie", "snps,dw-pcie";
 		reg = <0x33800000 0x4000>,
 		      <0x4ff00000 0x80000>;

diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index 82ad26e766eb..a00ba897e58d 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi

@@ -583,7 +583,7 @@
 					#address-cells = <1>;
 					#size-cells = <0>;
 
-					pgc_pcie_phy: pgc-power-domain@IMX7_POWER_DOMAIN_PCIE_PHY {
+					pgc_pcie_phy: pgc-power-domain@imx7_power_domain_pcie_phy {