overlays: Add nospi10

Add an overlay so spi10 can be disabled on Raspberry Pi 5. This allows the
firmware to continue to access EEPROM after boot so that AB firmware
updates can be performed.

Signed-off-by: Mathew Blowers <mathew.blowers@raspberrypi.com>

Author: mathewb64

arch/arm/boot/dts/overlays/Makefile

@@ -195,6 +195,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	mlx90640.dtbo \
 	mmc.dtbo \
 	mz61581.dtbo \
+	nospi10.dtbo \
 	ov2311.dtbo \
 	ov5647.dtbo \
 	ov64a40.dtbo \

arch/arm/boot/dts/overlays/README

@@ -3699,6 +3699,12 @@ Params: speed                   Display SPI bus speed
         xohms                   Touchpanel sensitivity (X-plate resistance)
 
 
+Name:   nospi10
+Info:   Disable the spi10 device on Pi5.
+Load:   dtoverlay=nospi10
+Params: <None>
+
+
 Name:   ov2311
 Info:   Omnivision OV2311 camera module.
         Uses Unicam 1, which is the standard camera connector on most Pi

arch/arm/boot/dts/overlays/nospi10-overlay.dts

@@ -0,0 +1,13 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2712";
+
+	fragment@0 {
+		target = <&spi10>;
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+};