[LoongArch64] Fix the assertion error for DynamicHelpers::CreateDicti…

…onaryLookupHelper(). (#98741)

* [LoongArch64] Fix the assert error for DynamicHelpers::CreateDictionaryLookupHelper().

* Update src/coreclr/vm/loongarch64/stubs.cpp

Co-authored-by: Jan Kotas <jkotas@microsoft.com>

---------

Co-authored-by: Jan Kotas <jkotas@microsoft.com>

src/coreclr/vm/loongarch64/stubs.cpp

@@ -1928,7 +1928,7 @@ PCODE DynamicHelpers::CreateDictionaryLookupHelper(LoaderAllocator * pAllocator,
             }
         }
 
-        _ASSERTE(indirectionsDataSize == dataOffset);
+        _ASSERTE((indirectionsDataSize ? indirectionsDataSize : codeSize) == dataOffset);
 
         // No null test required
         if (!pLookup->testForNull)