Fix missing cstdint include in system_info.h

Add #include <cstdint> for uint64_t, uint16_t, and uint32_t types.
Previously worked due to transitive includes from AMD OpenVX headers
but fails with the Khronos sample implementation.

Co-Authored-By: Claude Opus 4 <noreply@anthropic.com>

Author: kiritigowda

include/system_info.h

@@ -1,6 +1,7 @@
 #ifndef SYSTEM_INFO_H
 #define SYSTEM_INFO_H
 
+#include <cstdint>
 #include <string>
 
 struct SystemInfo {