8256633: Fix product build on Windows+Arm64

Reviewed-by: shade

Author: lewurm

src/hotspot/cpu/aarch64/assembler_aarch64.hpp

@@ -504,8 +504,7 @@ class Address {
         if (size == 0) // It's a byte
           i->f(_ext.shift() >= 0, 12);
         else {
-          if (_ext.shift() > 0)
-            assert(_ext.shift() == (int)size, "bad shift");
+          assert(_ext.shift() <= 0 || _ext.shift() == (int)size, "bad shift");
           i->f(_ext.shift() > 0, 12);
         }
         i->f(0b10, 11, 10);