next-20250610: arm64 No rule to make target rockchip rk3399-rockpro64-screen.dtso

[Naresh Kamboju]

Regression while building arm64 with the Linux next-20250610
the following dtb build errors noticed.

Regressions found on arm64 builds
- dtb build error

Regression Analysis:
- New regression? Yes
- Reproducibility? Yes

First seen on the next-20250610
Good: next-20250606
Bad:  next-20250610

Anders bisected this to,
# first bad commit:
  [49760b9f60528393cca3ea35c4d0719f84215a48]
  arm64: dts: rockchip: add overlay for RockPro64 screen

Build regression: arm64 No rule to make target rockchip
rk3399-rockpro64-screen.dtso

Reported-by: Linux Kernel Functional Testing <lkft at linaro.org>

## Build error
*** No rule to make target
'arch/arm64/boot/dts/rockchip/rk3399-rockpro64-screen.dtso', needed by
'__dtbs_install'.

## Source
* Kernel version: 6.16.0-rc1
* Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
* Git sha:  b27cc623e01be9de1580eaa913508b237a7a9673
* git describe: next-20250610
* Toolchains: gcc-8, gcc-13, clang-20
* Config: defconfig
* Architecture: arm64

## Build details
* Build warning:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2yJ4IOQa1XxMqDgmzjEl7VszYE9/build.log
* Build link:  https://storage.tuxsuite.com/public/linaro/lkft/builds/2yJ4IOQa1XxMqDgmzjEl7VszYE9/
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2yJ4IOQa1XxMqDgmzjEl7VszYE9/config

## Steps to reproduce
 - tuxmake --runtime podman --target-arch arm64 --toolchain gcc-13
--kconfig defconfig

--
Linaro LKFT
https://lkft.linaro.org