Warning while compiling tests/drivers/build_all/eeprom

[yishai1999]

Describe the bug
When building the tests/drivers/build_all/eeprom application there is a warning (seemingly introduced by #79910) caused by the fact that there are two nodes with the same reg value in tests/drivers/build_all/eeprom/app.overlay (lines 86 and 98).

To Reproduce
west build -b stm32f4_disco zephyr/tests/drivers/build_all/eeprom/

Should also happen on any other board.

Expected behavior

Clean build with no warning.

Impact

Logs and console output

CMake Warning at /home/user/dev/yishai/zephyrproject/zephyr/cmake/modules/dts.cmake:426 (message):
  dtc raised one or more warnings:


  /home/user/dev/yishai/zephyrproject/build/zephyr/zephyr.dts:1058.26-1067.6:
  Warning (unique_unit_address_if_enabled): /test/spi@33334444/at25@0:
  duplicate unit-address (also used in node /test/spi@33334444/mb85rsxx@0)

Call Stack (most recent call first):
  /home/user/dev/yishai/zephyrproject/zephyr/cmake/modules/zephyr_default.cmake:133 (include)
  /home/user/dev/yishai/zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
  /home/user/dev/yishai/zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
  CMakeLists.txt:4 (find_package)

Environment (please complete the following information):

• OS: Linux
• Toolchain: Zephyr SDK,
• main branch - commit 52fd016

Additional context

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