libcutils: compile with BOARD_VNDK_VERSION current

- moved __android_log_is_debuggable to a new public header
    (log_properties.h)
- vendor version of sched_policy uses ALOG* instead SLOG*

Test: (sanity) liblog-unit-tests
Test: (sanity) libcutils_test (noting b/b/32972117, two tests continue
  to fail)
Test: system/core as a whole makes with BOARD_VNDK_VERSION := current
  now with no problems.
Test: boots/works on internal marlin
Bug: 33241851

(cherry picked from commit cc5b035d9f5da5efe3edd4649858b04a1c9e7666)

Merged-In: I5bc1f348dc0f0c8814bec5b5c3d2c52c825ab640
Change-Id: I5bc1f348dc0f0c8814bec5b5c3d2c52c825ab640
8 files changed
tree: 90c305ea0769d282652d646f68decda8c0001286
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/