Fix codestyle in ECDH compile time initilaizers

Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
diff --git a/tf-psa-crypto/drivers/builtin/include/mbedtls/ecp.h b/tf-psa-crypto/drivers/builtin/include/mbedtls/ecp.h
index f4fc892..87d63ed 100644
--- a/tf-psa-crypto/drivers/builtin/include/mbedtls/ecp.h
+++ b/tf-psa-crypto/drivers/builtin/include/mbedtls/ecp.h
@@ -373,7 +373,7 @@
     mbedtls_ecp_restart_muladd_ctx *MBEDTLS_PRIVATE(ma); /*!<  ecp_muladd() sub-context      */
 } mbedtls_ecp_restart_ctx;
 
-#define MBEDTLS_ECP_RESTART_INIT {0, 0, NULL, NULL}
+#define MBEDTLS_ECP_RESTART_INIT { 0, 0, NULL, NULL }
 
 /*
  * Operation counts for restartable functions