vulkan-cereal: plumb contextId, capsetId, and contextName to RenderThread

The following are provided by the virtio-gpu hypercall interface.

- contextId
   * the virtio-gpu context associated with a RenderThread
   * could be useful for external memory sharing

- capsetId
   * type of context
   * could be useful for selectively turning on VK/GL/HWC decoders

- contextName
   * name of guest app/process
   * useful for naming RenderThread(s) associated with guest app on host

This is just the plumbing.  These will be enabled when explicit
ASG context creation lands.

BUG=235485545
TEST=top -H to see RenderThread name

Change-Id: Ia2c927020f7631e448d616a774469018c21860bb
diff --git a/stream-servers/RenderThread.cpp b/stream-servers/RenderThread.cpp
index 8a00801..104cb4a 100644
--- a/stream-servers/RenderThread.cpp
+++ b/stream-servers/RenderThread.cpp
@@ -98,10 +98,14 @@
 RenderThread::RenderThread(
         struct asg_context context,
         android::base::Stream* loadStream,
-        android::emulation::asg::ConsumerCallbacks callbacks)
-    : android::base::Thread(android::base::ThreadFlags::MaskSignals, 2 * 1024 * 1024),
+        android::emulation::asg::ConsumerCallbacks callbacks,
+        uint32_t contextId, uint32_t capsetId,
+        std::optional<std::string> nameOpt)
+    : android::base::Thread(android::base::ThreadFlags::MaskSignals, 2 * 1024 * 1024,
+                            std::move(nameOpt)),
       mRingStream(
-          new RingStream(context, callbacks, kStreamBufferSize)) {
+          new RingStream(context, callbacks, kStreamBufferSize)),
+      mContextId(contextId), mCapsetId(capsetId) {
     if (loadStream) {
         const bool success = loadStream->getByte();
         if (success) {