sync: Add synchronization framework

not run through checkpatch yet.

Change-Id: I209f9db2824e0313f467f11ab09e5f54f0a4a6b5
Signed-off-by: Erik Gilling <konkers@android.com>
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 9aa618a..784d08b 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -192,4 +192,12 @@
 	  APIs extension; the file's descriptor can then be passed on to other
 	  driver.
 
+config SYNC
+	bool "Synchronization framework"
+	default n
+	select ANON_INODES
+	help
+	  This option enables the framework for synchronization between multiple
+	  drivers.  Sync implementations can take advantage of hardware
+	  synchronization built into devices like GPUs.
 endmenu