Implements RANDOM_MULTINOMIAL CTS/VTS tests.

Bug: 113562775
Test: VtsHalNeuralnetworksV1_2TargetTest --hal_service_instance=android.hardware.neuralnetworks@1.2::IDevice/sample-all
Change-Id: I3d39d056bf5034e01ce9c5c5e3f416a63d7ec8eb
Merged-In: I3d39d056bf5034e01ce9c5c5e3f416a63d7ec8eb
(cherry picked from commit 941d61a62d52b3b5c526c88ace1fc0e538364c71)
diff --git a/neuralnetworks/1.1/vts/functional/Android.bp b/neuralnetworks/1.1/vts/functional/Android.bp
index 52a804a..a1c0f1f 100644
--- a/neuralnetworks/1.1/vts/functional/Android.bp
+++ b/neuralnetworks/1.1/vts/functional/Android.bp
@@ -31,6 +31,7 @@
         "android.hardware.neuralnetworks@1.2",
         "android.hidl.allocator@1.0",
         "android.hidl.memory@1.0",
+        "libgmock",
         "libhidlmemory",
         "libneuralnetworks_utils",
         "VtsHalNeuralnetworksTest_utils",