Fix code style violation in the variables in BufferHubDefs::MetadataHeader

Violation: variables should be lowerCaseCamel in the following directories:
frameworks/native/libs/ui and frameworks/native/services/bufferhub


Test: m, mma
Bug: 68273829
Change-Id: I7dc56ec17089456f98b018032f04f779b12632b2
diff --git a/services/bufferhub/BufferHubService.cpp b/services/bufferhub/BufferHubService.cpp
index ade08e7..7a3472f 100644
--- a/services/bufferhub/BufferHubService.cpp
+++ b/services/bufferhub/BufferHubService.cpp
@@ -241,8 +241,8 @@
 
         MetadataHeader* metadataHeader =
                 const_cast<BufferHubMetadata*>(&node->metadata())->metadataHeader();
-        const uint32_t state = metadataHeader->buffer_state.load(std::memory_order_acquire);
-        const uint64_t index = metadataHeader->queue_index;
+        const uint32_t state = metadataHeader->bufferState.load(std::memory_order_acquire);
+        const uint64_t index = metadataHeader->queueIndex;
 
         stream << std::right;
         stream << std::setw(6) << /*Id=*/node->id();