Fix Windows build

Change-Id: I8e219f8200875e3c46c1f54348317ba7ad8ae8ba


[ROCm/clr commit: 73751496e1]

projects/clr/hipamd/vdi/hip_internal.hpp

@@ -48,7 +48,7 @@ typedef struct ihipIpcMemHandle_st {
 } ihipIpcMemHandle_t;
 
 #ifdef _WIN32
-  int getpid() { return _getpid();}
+  inline int getpid() { return _getpid(); }
 #endif
 
 #define HIP_INIT() \