Fix BufferHubBuffer black screen

1/ BufferHubService should read back fields of
HardwareBufferDescription of allocated BufferNode and send them back
to the client.
2/ Update some minor naming for better readability.

Bug: 122959735
Test: cts-tradefed run commandAndExit cts -m CtsNativeHardwareTestCases
Change-Id: I10a176810d78c754fe0b69d4128078fc17d50035
diff --git a/libs/ui/BufferHubBuffer.cpp b/libs/ui/BufferHubBuffer.cpp
index 405bcb6..604665b 100644
--- a/libs/ui/BufferHubBuffer.cpp
+++ b/libs/ui/BufferHubBuffer.cpp
@@ -79,10 +79,10 @@
     sp<IBufferClient> client;
     BufferTraits bufferTraits;
     IBufferHub::allocateBuffer_cb alloc_cb = [&](const auto& status, const auto& outClient,
-                                                 const auto& traits) {
+                                                 const auto& outTraits) {
         ret = status;
         client = std::move(outClient);
-        bufferTraits = std::move(traits);
+        bufferTraits = std::move(outTraits);
     };
 
     if (!bufferhub->allocateBuffer(desc, static_cast<uint32_t>(userMetadataSize), alloc_cb)
@@ -116,10 +116,10 @@
     sp<IBufferClient> client;
     BufferTraits bufferTraits;
     IBufferHub::importBuffer_cb import_cb = [&](const auto& status, const auto& outClient,
-                                                const auto& traits) {
+                                                const auto& outTraits) {
         ret = status;
         client = std::move(outClient);
-        bufferTraits = std::move(traits);
+        bufferTraits = std::move(outTraits);
     };
 
     // hidl_handle(native_handle_t*) simply creates a raw pointer reference withouth ownership