nrf_security: Avoid adding Cracen ctr_drbg for tests

Don't add the file ctr_drbg.c when you build the tests.
While testing a modified version of this file is used
which implements the same symbols so this file cannot
be included.

Signed-off-by: Georgios Vasilakis <[email protected]>

Author: Vge0rge

subsys/nrf_security/src/drivers/cracen/cracenpsa/cracenpsa.cmake

@@ -21,10 +21,15 @@ list(APPEND cracen_driver_sources
   # Note: We always need to have cipher.c and ctr_drbg.c since it
   # is used directly by many Cracen drivers.
   ${CMAKE_CURRENT_LIST_DIR}/src/cipher.c
-  ${CMAKE_CURRENT_LIST_DIR}/src/ctr_drbg.c
   ${CMAKE_CURRENT_LIST_DIR}/src/prng_pool.c
 )
 
+if(NOT CONFIG_PSA_CRYPTO_DRIVER_ALG_PRNG_TEST)
+  list(APPEND cracen_driver_sources
+    ${CMAKE_CURRENT_LIST_DIR}/src/ctr_drbg.c
+  )
+endif()
+
 if(CONFIG_CRACEN_IKG)
   list(APPEND cracen_driver_sources
     ${CMAKE_CURRENT_LIST_DIR}/src/ikg_signature.c