libnl: Android.mk -> Android.bp

Converting to be able to use some Soong features not available in make.

Test: (sanity) build and flash marlin device, works
Bug: 33241851
(cherry picked from commit b7f0bfbf23be7795613a1d806f87953091315d26)
Merged-In: If1f3f5fd5f6b1999011c25ac8b8107f12648435b
Change-Id: If1f3f5fd5f6b1999011c25ac8b8107f12648435b
2 files changed