Initialize ProcessGDBRemoteLog for LLGS to fix remote platform logging

This was previously initialized by ProcessGDBRemote::Initialize but lldb-server does not contain ProcessGDBRemote anymore so this needs to be initialized directly.

Differential Revision: http://reviews.llvm.org/D8186

llvm-svn: 231966
diff --git a/lldb/source/Plugins/Process/Linux/ProcessLinux.cpp b/lldb/source/Plugins/Process/Linux/ProcessLinux.cpp
index 3e3feaf..d635284 100644
--- a/lldb/source/Plugins/Process/Linux/ProcessLinux.cpp
+++ b/lldb/source/Plugins/Process/Linux/ProcessLinux.cpp
@@ -60,15 +60,7 @@
         PluginManager::RegisterPlugin(GetPluginNameStatic(),
                                       GetPluginDescriptionStatic(),
                                       CreateInstance);
-
-        Log::Callbacks log_callbacks = {
-            ProcessPOSIXLog::DisableLog,
-            ProcessPOSIXLog::EnableLog,
-            ProcessPOSIXLog::ListLogCategories
-        };
-        
-        Log::RegisterLogChannel (ProcessLinux::GetPluginNameStatic(), log_callbacks);
-        ProcessPOSIXLog::RegisterPluginName(GetPluginNameStatic());
+        ProcessPOSIXLog::Initialize(GetPluginNameStatic());
     }
 }