Switch to the new code style

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/include/alt-dummy/des_alt.h b/tests/include/alt-dummy/des_alt.h
index e5a0bd3..3b8abe4 100644
--- a/tests/include/alt-dummy/des_alt.h
+++ b/tests/include/alt-dummy/des_alt.h
@@ -20,14 +20,12 @@
 #ifndef DES_ALT_H
 #define DES_ALT_H
 
-typedef struct mbedtls_des_context
-{
+typedef struct mbedtls_des_context {
     int dummy;
 }
 mbedtls_des_context;
 
-typedef struct mbedtls_des3_context
-{
+typedef struct mbedtls_des3_context {
     int dummy;
 }
 mbedtls_des3_context;