Fix annotated disassembly in ll_prof.py

An overzealous removal in
https://crrev.com/9e39a9fff1c2966a3f650a4c31dbbe533886d614
caused the disassembly not to be annotated with ticks, even when
requested.

LOG=N

Review URL: https://codereview.chromium.org/1861323002

Cr-Commit-Position: refs/heads/master@{#35298}

tools/ll_prof.py

@@ -199,6 +199,10 @@ class Code(object):
       self.origin)
 
   def _GetDisasmLines(self, arch, options):
+    if self.origin == JS_ORIGIN:
+      inplace = False
+      filename = options.log + ".ll"
+    else:
       inplace = True
       filename = self.origin
     return disasm.GetDisasmLines(filename,