Add 'Android.mk' file, fix compile on Android.

This requires disabling LDPRELOAD and temporarily disabling
capabilities support.

Reland of https://android-review.googlesource.com/#/c/159755/
with compile fixes. Compile-tested on
aosp_{x86,x86_64,arm,arm64,mips64}-eng.

Bug: 22487289
Change-Id: Ia4530cf09b074aa0a2afe5a5b307ff3c5c5d6c08
8 files changed