SWDEV-299966 - Fix hipModuleGetTexRef

hipModuleGetTexRef() returns success for any global device
variable name even if it's not a texture.
This is wrong thus will fail "hipModuleTexture2dDrv --tests 0x14"
This patch will compare the size to overcome this issue somehow.

Change-Id: I4a4d96f947a68713036437ee525359ff412fefe2

hipamd/src/hip_platform.cpp

@@ -875,6 +875,10 @@ hipError_t PlatformState::getDynTexRef(const char* hostVar, hipModule_t hmod, te
   hip::DeviceVar* dvar = nullptr;
   IHIP_RETURN_ONFAIL(it->second->getDeviceVar(&dvar, hostVar));
 
+  if (dvar->size() != sizeof(textureReference)) {
+    return hipErrorNotFound;  // Any better way to verify texture type?
+  }
+
   dvar->shadowVptr = new texture<char>();
   *texRef =  reinterpret_cast<textureReference*>(dvar->shadowVptr);
   return hipSuccess;