Switch to the new code style

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/include/alt-dummy/ecp_alt.h b/tests/include/alt-dummy/ecp_alt.h
index d263871..56c9810 100644
--- a/tests/include/alt-dummy/ecp_alt.h
+++ b/tests/include/alt-dummy/ecp_alt.h
@@ -19,8 +19,7 @@
 #ifndef ECP_ALT_H
 #define ECP_ALT_H
 
-typedef struct mbedtls_ecp_group
-{
+typedef struct mbedtls_ecp_group {
     const mbedtls_ecp_group_id id;
     const mbedtls_mpi P;
     const mbedtls_mpi A;