Move psa_crypto_slot_management.h out from psa_crypto_helpers.h

Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
diff --git a/tests/src/psa_crypto_helpers.c b/tests/src/psa_crypto_helpers.c
index d9d841a..299b6d1 100644
--- a/tests/src/psa_crypto_helpers.c
+++ b/tests/src/psa_crypto_helpers.c
@@ -22,6 +22,7 @@
 
 #include <test/helpers.h>
 #include <test/macros.h>
+#include <psa_crypto_slot_management.h>
 #include <test/psa_crypto_helpers.h>
 
 #if defined(MBEDTLS_PSA_CRYPTO_C)