nrf_security: core: oberon: build with -DBUILDING_MBEDTLS_CRYPTO

Define BUILDING_MBEDTLS_CRYPTO when building source files of the Oberon
PSA Crypto core.
This is done to be aligned with Mbed TLS in Zephyr.

BUILDING_MBEDTLS_CRYPTO is used by the secure storage subsystem
to identify that the ITS calls are coming from PSA Crypto.
So it needs to be defined in all the PSA Crypto implementations.

Signed-off-by: Tomi Fontanilles <tomi.fontanilles@nordicsemi.no>

Author: tomi-font

subsys/nrf_security/src/core/nrf_oberon/CMakeLists.txt

@@ -40,6 +40,11 @@ target_compile_options(oberon_psa_core
     -Wno-strict-aliasing
 )
 
+target_compile_definitions(oberon_psa_core
+  PRIVATE
+    BUILDING_MBEDTLS_CRYPTO
+)
+
 target_link_libraries(oberon_psa_core
   PRIVATE
     psa_crypto_library_config
@@ -53,4 +58,3 @@ target_link_libraries(${mbedcrypto_target}
   PRIVATE
     oberon_psa_core
 )
-