Replace legacy trusty gatekeeper HAL with HIDLized version

This patch replaces the legacy libhardware based gatekeeper HAL with a
true HIDL based implementation.

Test: Workes with trusty gatekeeper
Change-Id: I072b0c3fc74523400132aacd34e2f2cac9cf261b
Merged-In: I072b0c3fc74523400132aacd34e2f2cac9cf261b
diff --git a/trusty/gatekeeper/android.hardware.gatekeeper@1.0-service.trusty.rc b/trusty/gatekeeper/android.hardware.gatekeeper@1.0-service.trusty.rc
new file mode 100644
index 0000000..5413a6c
--- /dev/null
+++ b/trusty/gatekeeper/android.hardware.gatekeeper@1.0-service.trusty.rc
@@ -0,0 +1,4 @@
+service vendor.gatekeeper-1-0 /vendor/bin/hw/android.hardware.gatekeeper@1.0-service.trusty
+    class hal
+    user system
+    group system