Change to use new WaitForProperty API

Change to use WaitForProperty API to wait for vold.post_fs_data_done
Also change cryptfs to C++

Bug: 35425974
Test: mma, marlin/angler boot

Change-Id: Id821f2035788fcc91909f296c83c871c67571de3
diff --git a/Android.mk b/Android.mk
index a8982f8..06d98eb 100644
--- a/Android.mk
+++ b/Android.mk
@@ -17,7 +17,7 @@
 	CheckBattery.cpp \
 	Ext4Crypt.cpp \
 	VoldUtil.c \
-	cryptfs.c \
+	cryptfs.cpp \
 	Disk.cpp \
 	VolumeBase.cpp \
 	PublicVolume.cpp \