ndk: x86: Sanitize platform headers and libraries.

This change sanitizes the x86-specific platform headers and libraries.
It does two things:

- Remove the stuff under android-3/arch-x86

- Update the content of android-9/arch-x86 from a recent AOSP
  full_x86-eng build (see caveats below).

Some files appear to move because they didn't change (e.g. kernel headers).

This change was generated by following these steps:

1/ Build full_x86-eng from the AOSP tree

2/ From $ANDROID_ROOT/ndk, run:

   build/tools/dev-system-import.sh --direct --arch=x86 9

3/ Under $ANDROID_ROOT/development/ndk, do:

   git rm -r android-3/arch-x86
   git add android-9/arch-x86
   git checkout -- android-9/include
   git ls-files -o | xargs rm
   git commit

IMPORTANT:
   The AOSP tip-of-tree used to generate these files
   includes post-Gingerbread changes !!

   The final version of the android-9/arch-x86 files will have to
   be generated from the gingerbread branch after we back-port all
   x86-support changes to it.

   These binaries are thus not final, but can be used to generate
   working experimental NDK packages, including prebuilt GNU libstdc++
   and STLport binaries that implement -fstack-protector correctly.

Change-Id: I260896185a098b9b356bd26f492692e4a4f66f8f
218 files changed