fix vendored deps

Signed-off-by: Antonio Murdaca <runcom@redhat.com>

vendor/github.com/opencontainers/runc/libcontainer/system/sysconfig.go

@@ -0,0 +1,31 @@
+// +build cgo,linux cgo,freebsd
+
+package system
+
+/*
+#include <unistd.h>
+#include <limits.h>
+
+int GetLongBit() {
+#ifdef _SC_LONG_BIT
+    int longbits;
+
+    longbits = sysconf(_SC_LONG_BIT);
+    if (longbits <  0) {
+        longbits = (CHAR_BIT * sizeof(long));
+    }
+    return longbits;
+#else
+    return (CHAR_BIT * sizeof(long));
+#endif
+}
+*/
+import "C"
+
+func GetClockTicks() int {
+	return int(C.sysconf(C._SC_CLK_TCK))
+}
+
+func GetLongBit() int {
+	return int(C.GetLongBit())
+}