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/Makefile b/drivers/base/Makefile
index b6d1b9c..a43e369 100644
--- a/drivers/base/Makefile
+++ b/drivers/base/Makefile
@@ -21,5 +21,7 @@
 obj-$(CONFIG_REGMAP)	+= regmap/
 obj-$(CONFIG_SOC_BUS) += soc.o
 
+obj-$(CONFIG_SYNC)	+= sync.o
+
 ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG