openwrt/patches: ipq40xx: disable DMA for fritzbox 4040

With this change we hope to solve problems with FritzBox 4040 in our net
randomly having problems accessing their SPI-NORs during runtime or
update.

Note:
Upstreaming in progress:
https://github.com/openwrt/openwrt/pull/15966

patches/openwrt/0008-ipq40xx-disable-DMA-for-fritzbox-4040.patch

+From 142e3e3b641f7dae1dc3d808f60e5d9a86d1f8e1 Mon Sep 17 00:00:00 2001
+From: Rouven Czerwinski <r.czerwinski@pengutronix.de>
+Date: Sun, 26 May 2024 11:54:04 +0200
+Subject: [PATCH] ipq40xx: disable DMA for fritzbox 4040
+
+Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
+---
+ .../files/arch/arm/boot/dts/qcom-ipq4018-fritzbox-4040.dts      | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-fritzbox-4040.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-fritzbox-4040.dts
+index e448206c36..9991a21807 100644
+--- a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-fritzbox-4040.dts
++++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-fritzbox-4040.dts
+@@ -157,6 +157,8 @@
+ 	pinctrl-0 = <&spi_0_pins>;
+ 	pinctrl-names = "default";
+ 	status = "okay";
++	/delete-property/ dmas;
++	/delete-property/ dma-names;
+ 	cs-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>;
+ 
+ 	flash@0 {
+-- 
+2.39.2
+