am af399d90: pppd: Enable MPPE in Android.mk.

Merge commit 'af399d90a97fe1483580abaae2966d9cbd235d57'

* commit 'af399d90a97fe1483580abaae2966d9cbd235d57':
  pppd: Enable MPPE in Android.mk.
tree: 4d2b2abe00624324219a038932f97407dd674d07
  1. pppd/