Enable sendfile() and splice() optimizations.

This can easily be reverted if we uncover any trouble.

Test: bit FrameworksCoreTests:android.os.FileUtilsTest
Test: vogar --mode app_process --benchmark frameworks/base/core/tests/benchmarks/src/android/os/FileUtilsBenchmark.java
Bug: 71932978
Change-Id: Iac97c342948074c4f373e5f2ae70e563b308a11e
1 file changed