Fix build break caused by vold change

cryptfs.h now includes sha header from libcrypto folder

Change-Id: Icd02c88971aedf96040c3bd9ca759e531546023b
diff --git a/Android.mk b/Android.mk
index c910e7d..3b899b5 100644
--- a/Android.mk
+++ b/Android.mk
@@ -75,6 +75,7 @@
 endif
 
 LOCAL_C_INCLUDES += system/extras/ext4_utils
+LOCAL_C_INCLUDES += external/openssl/include
 
 include $(BUILD_EXECUTABLE)