am 93369c24: Add the \'hello-neon\' sample app to demonstrate cpufeatures and ARM Neon usage.

Merge commit '93369c247069b116f39c30530287809f5a190c22' into eclair-plus-aosp

* commit '93369c247069b116f39c30530287809f5a190c22':
  Add the 'hello-neon' sample app to demonstrate cpufeatures and ARM Neon usage.