use more static and fix [-Wmissing-prototypes], ongoing...

client/emv/test/crypto_test.c

@@ -24,6 +24,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <inttypes.h>
+#include "crypto_test.h"
 
 static int test_genkey(unsigned int keylength, unsigned char *msg, size_t msg_len, bool verbose) {
     int ret = 1;

client/emv/test/sda_test.c

@@ -26,6 +26,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include "sda_test.h"
 
 struct emv_pk vsdc_01 = {
     .rid = { 0xa0, 0x00, 0x00, 0x00, 0x03, },