Fix code style

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 7dd8e4d..b09db1e 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -4074,7 +4074,8 @@
          (SSL_SERIALIZED_SESSION_CONFIG_MFL << SSL_SERIALIZED_SESSION_CONFIG_MFL_BIT) | \
          (SSL_SERIALIZED_SESSION_CONFIG_ETM << SSL_SERIALIZED_SESSION_CONFIG_ETM_BIT) | \
          (SSL_SERIALIZED_SESSION_CONFIG_TICKET << SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT) | \
-         (SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT << SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT << \
+             SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT_BIT) | \
          (SSL_SERIALIZED_SESSION_CONFIG_SNI << SSL_SERIALIZED_SESSION_CONFIG_SNI_BIT) | \
          (SSL_SERIALIZED_SESSION_CONFIG_EARLY_DATA << \
              SSL_SERIALIZED_SESSION_CONFIG_EARLY_DATA_BIT) | \