[aarch64] Fixes CLI crashes on dpaa2 platform.

- always use 'va_args' as pointer in all format_* functions
- u32 for all 'indent' params as it's declaration was inconsistent

Change-Id: Ic5799309a6b104c9b50fec309cba789c8da99e79
Signed-off-by: Christophe Fontaine <christophe.fontaine@enea.com>
diff --git a/src/vnet/udp/udp_format.c b/src/vnet/udp/udp_format.c
index abdf561..0e9fb17 100644
--- a/src/vnet/udp/udp_format.c
+++ b/src/vnet/udp/udp_format.c
@@ -45,7 +45,7 @@
 {
   udp_header_t *udp = va_arg (*args, udp_header_t *);
   u32 max_header_bytes = va_arg (*args, u32);
-  uword indent;
+  u32 indent;
   u32 header_bytes = sizeof (udp[0]);
 
   /* Nothing to do. */