Refactoring of aes-perf/sha-perf benchmark code in xtest

1. Moved verbosity macros and defines for default values into the common header
2. Minor fixes

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
diff --git a/host/xtest/xtest_main.c b/host/xtest/xtest_main.c
index ec61314..d19384a 100644
--- a/host/xtest/xtest_main.c
+++ b/host/xtest/xtest_main.c
@@ -21,8 +21,7 @@
 #include "xtest_helpers.h"
 
 /* include here shandalone tests */
-#include "sha_perf.h"
-#include "aes_perf.h"
+#include "crypto_common.h"
 
 #ifdef WITH_GP_TESTS
 #include "adbg_entry_declare.h"