Now that GCC 4.6 has been made the default toolchain in the Android NDK there is no need to follow any special steps. Check out Android NDKr8b.
It has a known bug already. The STANDALONE toolchain that some use build from the NDK incorrectly sets up the paths for C++ headers. The fix is seen here on the bug report (https://android-review.googlesource.com/#/c/39878/).
mv $NDK_TOOLCHAIN/arm-linux-androideabi/include/c++/4.6 $NDK_TOOLCHAIN/arm-linux-androideabi/include/c++/4.6.x-google
Enjoy the extra C++11 features such as lambda and constexpr.