vold: set f2fs feature bit

Bug: 74604441
Bug: 67380979
Change-Id: Ifcb43fb4f8fbdf79e70cfa208af73073d815e254
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
diff --git a/fs/F2fs.cpp b/fs/F2fs.cpp
index 56369d5..f24fd91 100644
--- a/fs/F2fs.cpp
+++ b/fs/F2fs.cpp
@@ -86,6 +86,10 @@
         cmd.push_back("-O");
         cmd.push_back("encrypt");
     }
+
+    cmd.push_back("-O");
+    cmd.push_back("verity");
+
     cmd.push_back(source);
     return ForkExecvp(cmd);
 }