android-nn-driver: modify init.rc files

Modify the rc files for the armnn nnapi service so that it matches the
sepolicy rules, so the service will start at boot.

Test: ensure the armnn service is running on boot.
Test: CtsNNAPITestCases
Fixes: 156032242

Change-Id: I6899e96d536969b61761ab11a0e85ef2f614358f
diff --git a/android.hardware.neuralnetworks@1.0-service-armnn.rc b/android.hardware.neuralnetworks@1.0-service-armnn.rc
index d720086..318f2e1 100644
--- a/android.hardware.neuralnetworks@1.0-service-armnn.rc
+++ b/android.hardware.neuralnetworks@1.0-service-armnn.rc
@@ -1,4 +1,4 @@
-service neuralnetworks_hal_service_armnn /vendor/bin/hw/android.hardware.neuralnetworks@1.0-service-armnn
+service hal_neuralnetworks_armnn /vendor/bin/hw/android.hardware.neuralnetworks@1.0-service-armnn
     class hal
     user system
     group system