gfxstream: Update GfxApiLogger namespace and header file

... to parallel the changes in ag/33517750.

Reviewed-by: Marcin Radomski <dextero@google.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35323>

src/gfxstream/codegen/scripts/cereal/decodersnapshot.py

@@ -56,8 +56,6 @@ decoder_snapshot_decl_postamble = """
 
 decoder_snapshot_impl_preamble ="""
 
-using emugl::GfxApiLogger;
-
 namespace gfxstream {
 namespace vk {
 

src/gfxstream/codegen/scripts/cerealgenerator.py

@@ -204,6 +204,22 @@ copyrightHeader = """// Copyright (C) 2018 The Android Open Source Project
 // limitations under the License.
 """
 
+coprightHeaderPy = """# Copyright (C) 2025 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+
 # We put the long generated commands in a separate paragraph, so that the formatter won't mess up
 # with other texts.
 autogeneratedHeaderTemplate = """
@@ -281,8 +297,6 @@ class CerealGenerator(OutputGenerator):
         self.featureSupported = False
         self.supportedModules = None
 
-        self.utilsHeaderDirPrefix = "utils"
-
         # The cereal variant should be an environmental variable of one of
         # the following:
         #    - "guest"
@@ -493,8 +507,8 @@ using DlSymFunc = void* (void*, const char*);
 #include <memory>
 
 #include "VkSnapshotApiCall.h"
-#include "{self.utilsHeaderDirPrefix}/GfxApiLogger.h"
 #include "gfxstream/HealthMonitor.h"
+#include "gfxstream/host/GfxApiLogger.h"
 #include "goldfish_vk_private_defs.h"
 """
         decoderSnapshotImplIncludes = f"""
@@ -650,7 +664,8 @@ class BumpPool;
                                implOnly=True)
 
             self.addModule(cereal.PyScript(self.host_tag, "vulkan_printer", customAbsDir=Path(
-                self.host_script_destination) / "print_gfx_logs"), moduleName="ApiLogDecoder")
+                self.host_script_destination) / "print_gfx_logs"), moduleName="ApiLogDecoder",
+                extraHeader=coprightHeaderPy)
             self.addHostModule(
                 "vulkan_gfxstream_structure_type", headerOnly=True, suppressFeatureGuards=True,
                 moduleName="vulkan_gfxstream_structure_type_host", useNamespace=False,
@@ -704,10 +719,12 @@ class BumpPool;
             suppressFeatureGuards=suppressFeatureGuards, moduleName=moduleName,
             suppressVulkanHeaders=suppressVulkanHeaders)
 
-    def addModule(self, module, moduleName=None):
+    def addModule(self, module, moduleName=None, extraHeader=None):
         if moduleName is None:
             moduleName = module.basename
         self.moduleList.append(moduleName)
+        if extraHeader:
+            module.preamble = extraHeader
         self.modules[moduleName] = module
 
     def addCppModule(