samples: code relocation in external memory of stm32h7s78 disco kit

Define the configuration to run the code_relocation
application on the external memory octo flash with xspi driver
of the stm32h7s78_dk disco kit in XIP

Signed-off-by: Francois Ramu <[email protected]>

Author: FRASTM

samples/application_development/code_relocation_nocopy/sample.yaml

@@ -7,8 +7,8 @@ tests:
       - qemu_cortex_m3
       - nrf5340dk/nrf5340/cpuapp
       - stm32f769i_disco
-      - stm32h7b3i_dk
       - stm32h573i_dk
+      - stm32h7b3i_dk
       - b_u585i_iot02a
       - stm32h745i_disco/stm32h745xx/m7
       - stm32h750b_dk