Remove binary int use

Signed-off-by: Werner Lewis <werner.lewis@arm.com>
diff --git a/tests/suites/test_suite_x509parse.function b/tests/suites/test_suite_x509parse.function
index 2495270..d831eb1 100644
--- a/tests/suites/test_suite_x509parse.function
+++ b/tests/suites/test_suite_x509parse.function
@@ -813,7 +813,7 @@
     parsed_cur = &parsed;
     for( ; next_merged != 0 && parsed_cur != NULL; next_merged = next_merged >> 1 )
     {
-        parsed_cur->next_merged = next_merged & 0b1;
+        parsed_cur->next_merged = next_merged & 0x01;
         parsed_cur = parsed_cur->next;
     }