define bit_* if not already defined

libi2pd/CPU.cpp

@@ -3,6 +3,15 @@
 #include <cpuid.h>
 #endif
 #include "Log.h"
+
+#ifndef bit_AES
+#define bit_AES (1 << 25)
+#endif
+#ifndef bit_AVX
+#define bit_AVX (1 << 28)
+#endif
+
+
 namespace i2p
 {
 namespace cpu