configs,rpi4: add factory default password

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

Author: troglobit

board/aarch64/rpi/bcm2711-rpi-4-b-dts.patch

@@ -0,0 +1,14 @@
+--- a/arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts	2025-04-28 00:13:06.880003668 +0200
++++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts	2025-04-28 00:14:17.708941263 +0200
+@@ -14,6 +14,11 @@
+ 	chosen {
+ 		/* 8250 auxiliary UART instead of pl011 */
+ 		stdout-path = "serial1:115200n8";
++
++		infix {
++			/* Default admin user password: 'admin' */
++			factory-password-hash = "$5$mI/zpOAqZYKLC2WU$i7iPzZiIjOjrBF3NyftS9CCq8dfYwHwrmUK097Jca9A";
++		};
+ 	};
+ 
+ 	cam1_reg: regulator-cam1 {

configs/rpi4_defconfig

@@ -29,6 +29,7 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="board/raspberrypi4-64/post-image.sh"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.12.30"
+BR2_LINUX_KERNEL_PATCH="${BR2_EXTERNAL_INFIX_PATH}/board/aarch64/rpi/bcm2711-rpi-4-b-dts.patch"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="${BR2_EXTERNAL_INFIX_PATH}/board/aarch64/rpi/bcm2711_defconfig"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y