Begin cleanup of HidlBinderSupport.h includes.

Removing ones that are unused within libhidltransport itself.
Include of log/log.h is added because there are too many users
depending on this transitive include.

Bug: 65843592
Test: build only
Change-Id: Ifcf2ab2a93324a242869318a5dd400e5d6944839
diff --git a/transport/HidlBinderSupport.cpp b/transport/HidlBinderSupport.cpp
index cd05c3d..add1f5e 100644
--- a/transport/HidlBinderSupport.cpp
+++ b/transport/HidlBinderSupport.cpp
@@ -19,6 +19,7 @@
 #include <hidl/HidlBinderSupport.h>
 
 #include <InternalStatic.h>  // TODO(b/69122224): remove this include, for getOrCreateCachedBinder
+#include <hwbinder/IPCThreadState.h>
 
 // C includes
 #include <unistd.h>