KFDTest: remove the usage global g_TestGPUFamilyId

Adjust the KFDTest for multi-gou support

Change-Id: Ib3491e3f645d35fdba6ab702d65fcc86f48d3958
Signed-off-by: shaoyunl <shaoyun.liu@amd.com>

tests/kfdtest/src/SDMAQueue.cpp

@@ -63,7 +63,7 @@ unsigned int SDMAQueue::RptrWhenConsumed() {
 
 void SDMAQueue::SubmitPacket() {
     // m_pending Wptr is in dwords
-    if (g_TestGPUFamilyId < FAMILY_AI) {
+    if (m_FamilyId < FAMILY_AI) {
         // Pre-Vega10 uses 32-bit wptr and doorbell
         unsigned int wPtrInBytes = m_pendingWptr * sizeof(unsigned int);
         MemoryBarrier();