SWDEV-539710 - Defer allocation of managed variable (#652)

Co-authored-by: Rahul Manocha <rmanocha@amd.com>

rocclr/platform/memory.cpp

@@ -1553,8 +1553,8 @@ bool SvmBuffer::Contains(uintptr_t ptr) {
 
 // The allocation flags are ignored for now.
 void* SvmBuffer::malloc(Context& context, cl_svm_mem_flags flags, size_t size, size_t alignment,
-                        const amd::Device* curDev) {
-  void* ret = context.svmAlloc(size, alignment, flags, curDev);
+                        const amd::Device* curDev, void* hostptr) {
+  void* ret = context.svmAlloc(size, alignment, flags, curDev, hostptr);
   if (ret == nullptr) {
     LogError("Unable to allocate aligned memory");
     return nullptr;