Make patchoat use the sht_entsize when patching.

This fixes an occasional problem with multiarch use of patchoat.

Change-Id: I80799de36774720bd985704f9b709a8378bb5af5
diff --git a/patchoat/patchoat.h b/patchoat/patchoat.h
index 6960d3b..326333e 100644
--- a/patchoat/patchoat.h
+++ b/patchoat/patchoat.h
@@ -74,11 +74,12 @@
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
   bool InHeap(mirror::Object*);
 
-  bool CheckOatFile();
-
   // Patches oat in place, modifying the oat_file given to the constructor.
   bool PatchElf();
   bool PatchTextSection();
+  // Templatized version to actually do the patching with the right sized offsets.
+  template <typename ptr_t> bool PatchTextSection(const Elf32_Shdr& patches_sec);
+  template <typename ptr_t> bool CheckOatFile(const Elf32_Shdr& patches_sec);
   bool PatchOatHeader();
   bool PatchSymbols(Elf32_Shdr* section);