Use HW_NCPUONLINE on OpenBSD

HW_NCPUONLINE is the proper sysctl to use for the logical processor
count.

Author: brad0

codec/common/src/WelsThreadLib.cpp

@@ -522,7 +522,7 @@ WELS_THREAD_ERROR_CODE    WelsQueryLogicalProcessInfo (WelsLogicalProcessInfo* p
   size_t len = sizeof (pInfo->ProcessorCount);
 
 #if defined(__OpenBSD__)
-  int scname[] = { CTL_HW, HW_NCPU };
+  int scname[] = { CTL_HW, HW_NCPUONLINE };
   if (sysctl (scname, 2, &pInfo->ProcessorCount, &len, NULL, 0) == -1)
 #else
   if (sysctlbyname (HW_NCPU_NAME, &pInfo->ProcessorCount, &len, NULL, 0) == -1)