CrystaX NDK

tests/device/crystax-test-msun consists of several tests. Right now only part of them passed on device, others are failed. In fact, this test case is bit complicated, since it includes check of many math functions, including floating point, complex, etc.

It makes sense to fix it step-by-step. As of now, the most critical fails were fixed; others should be too, but not with "high" priority, so lower priority of this ticket and switch it back to "open" status.