kfdtest: Fix ISA buffers not executable

Fix for some places where the ISA buffers are not declared as
executable. Previous code in Thunk was blindly setting exec bit on all
memory allocations so this issue was masked.

Change-Id: Ic7a1169c69fb85ff9e8ea7bcc49a1845b37c08ff

libhsakmt/tests/kfdtest/src/RDMATest.cpp

@@ -57,7 +57,7 @@ TEST_F(RDMATest, GPUDirect) {
     int defaultGPUNode = m_NodeInfo.HsaDefaultGPUNode();
     ASSERT_GE(defaultGPUNode, 0) << "failed to get default GPU Node";
 
-    HsaMemoryBuffer isaBuffer(PAGE_SIZE, defaultGPUNode);
+    HsaMemoryBuffer isaBuffer(PAGE_SIZE, defaultGPUNode, true/*zero*/, false/*local*/, true/*exec*/);
     HsaMemoryBuffer srcSysBuffer(BufferSize, defaultGPUNode, false);
     HsaMemoryBuffer srcLocalBuffer(BufferSize, defaultGPUNode, false, true);
 
@@ -130,7 +130,7 @@ TEST_F(RDMATest, ContiguousVRAMAllocation) {
         return;
     }
 
-    HsaMemoryBuffer isaBuffer(PAGE_SIZE, defaultGPUNode);
+    HsaMemoryBuffer isaBuffer(PAGE_SIZE, defaultGPUNode, true/*zero*/, false/*local*/, true/*exec*/);
     HsaMemoryBuffer srcSysBuffer(PAGE_SIZE, defaultGPUNode, false);
     void *LocalBuffer;
     HsaMemFlags memFlags = {0};