Merge "Added static library target for pppd" am: 28eb3e4f83 am: dde1bdd633 am: 19d2f0440d am: 1a2e2349d9

Original change: https://android-review.googlesource.com/c/platform/external/ppp/+/1349164

Change-Id: I16b8f9b98317edab6060c9b7e9a765b3a2b1fe99