Export libKmtSetTrapHandler symbol as global

Change-Id: I065dbecd05e992bc528128d893edaf636c1beff7

src/libhsakmt.ver

@@ -45,6 +45,7 @@ hsaKmtPmcQueryTrace;
 hsaKmtPmcStopTrace;
 hsaKmtMapGraphicHandle;
 hsaKmtUnmapGraphicHandle;
+hsaKmtSetTrapHandler;
 
 local: *;
 };