build: fix -Wold-style-declaration warnings

libnm-core/nm-setting-bond.c:502:1: error: ‘static’ is not at beginning of declaration [-Werror=old-style-declaration]
     const static struct {
     ^~~~~

    In file included from clients/cli/common.c:32:0:
    ./clients/common/nm-vpn-helpers.h:27:1: error: ‘typedef’ is not at beginning of declaration [-Werror=old-style-declaration]
     } typedef VpnPasswordName;
    ^

clients/common/nm-vpn-helpers.h

@@ -21,10 +21,10 @@
 
 #include <NetworkManager.h>
 
-struct {
+typedef struct {
 	const char *name;
 	const char *ui_name;
-} typedef VpnPasswordName;
+} VpnPasswordName;
 
 GSList *nm_vpn_get_plugin_infos (void);
 

libnm-core/nm-setting-bond.c

@@ -499,7 +499,7 @@ _nm_setting_bond_mode_from_string (const char *str)
 
 #define BIT(x) (1 << (x))
 
-const static struct {
+static const struct {
 	const char *option;
 	NMBondMode unsupp_modes;
 } bond_unsupp_modes[] = {