Change size of old pointer space first page back to 112KB (as it was before r23241)

This broke ReleaseOverReservedPages on Windows ia32.

TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/493703002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23244 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/heap/spaces.cc

@@ -996,7 +996,7 @@ intptr_t PagedSpace::SizeOfFirstPage() {
   int size = 0;
   switch (identity()) {
     case OLD_POINTER_SPACE:
-      size = (96 + constant_pool_delta) * kPointerSize * KB;
+      size = (112 + constant_pool_delta) * kPointerSize * KB;
       break;
     case OLD_DATA_SPACE:
       size = 192 * KB;