This patch replaces the legacy libhardware based gatekeeper HAL with a
true HIDL based implementation.
Test: Not yet
Change-Id: I072b0c3fc74523400132aacd34e2f2cac9cf261b
Merged-In: I072b0c3fc74523400132aacd34e2f2cac9cf261b
Should use android/log.h instead of cutils/log.h as a good example
to all others. Adjust header order to comply with Android Coding
standards.
Test: Compile
Bug: 26552300
Bug: 31289077
Change-Id: I2c9cbbbd64d8dccf2d44356361d9742e4a9b9031