Add & splice in test driver for ECC keygen

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
diff --git a/tests/include/drivers/test_driver.h b/tests/include/drivers/test_driver.h
index 5494674..fec305f 100644
--- a/tests/include/drivers/test_driver.h
+++ b/tests/include/drivers/test_driver.h
@@ -25,5 +25,6 @@
 #define MBEDTLS_PSA_CRYPTO_TEST_DRIVER_LIFETIME 0x7fffff
 
 #include "drivers/signature.h"
+#include "drivers/keygen.h"
 
 #endif /* MBEDTLS_PSA_CRYPTO_TEST_DRIVER_H */