Reenable --simd-object after M38 rebasing.

BUG=XWALK-2448
DEPS.xwalk: Roll v8-crosswalk (6264ffa -> 360260f).

360260f Merge pull request #52 from fujunwei/rebase-simd-next
3a6db36 Inline all SIMD operations and optimize the SIMD arrays load and store.
253c4ee Introduce Float32x4, Float64x2, Int32x4, Float32x4Array, Float64x2Array and Int32x4Array data types, implement the SIMD operations on the Float32x4, Float64x2 and Int32x4 with C++ runtime functions and implement Float32x4Array, Float64x2Array and Int32x4Array element loading and storing.

BUG=XWALK-2448
[Android] Add DEPS for khronos's OpenCL header files to support WebCL.

It is a dependent patch for WebCL support.
This subversion repo comes from khronos, which is the MIT license.
It hosts the OpenCL header files, and its version is 1.2,
which is the latest version supported on Android platform.

BUG=XWALK-2359
Merge pull request #2424 from huningxin/master

Enable SIMD.js after M38 rebasing
Merge pull request #2426 from junmin-zhu/header

[Android] Add DEPS for khronos's OpenCL header files to support WebCL.