[NFC][hwasan] Use DEBUG_TYPE instead of "hwasan"

Author: vitalybuka

llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp

@@ -293,8 +293,8 @@ class HWAddressSanitizer {
       : M(M), SSI(SSI) {
     this->Recover = optOr(ClRecover, Recover);
     this->CompileKernel = optOr(ClEnableKhwasan, CompileKernel);
-    this->Rng =
-        ClRandomSkipRate.getNumOccurrences() ? M.createRNG("hwasan") : nullptr;
+    this->Rng = ClRandomSkipRate.getNumOccurrences() ? M.createRNG(DEBUG_TYPE)
+                                                     : nullptr;
 
     initializeModule();
   }