Use __attribute__((weak)) to check for fdsan availability at runtime,
to support being used when built with the NDK while targeting older
platform versions.
This reverts commit af798acaea49b8d9150b94eb9f5f11450a6b8893.
Bug: http://b/110100358
Test: m libjnitest
Change-Id: Ie59d041d69cc3d4b6c59412d706f702dd1d2dab2
This reverts commit fcf2c01b55.
Commit broke full-eng, because libbase is being compiled against the NDK.
Test: treehugger
Change-Id: I8447b6a7fc33e6aa34cec0f037727322fa824446