vold: Bugfixes & cleanups

  - Fix issue where container-names > 64 bytes were getting truncated in the
    kernel. lo_name is only 64 bytes in length, so we now hash the container
    id via md5
  - Add 'dump' command to dump loop and devicemapper status
  - Add 'debug' command to enable more detailed logging at runtime
  - Log vold IPC arguments (minus encryption keys)
  - Fix premature return from Loop::lookupActive() and friends

Change-Id: I0e833261a445ce9dc1a8187e5501d27daba1ca76
Signed-off-by: San Mehat <san@google.com>
diff --git a/Android.mk b/Android.mk
index 523601e..f87fec1 100644
--- a/Android.mk
+++ b/Android.mk
@@ -25,7 +25,8 @@
                   Loop.cpp                             \
                   Devmapper.cpp                        \
                   ResponseCode.cpp                     \
-                  Xwarp.cpp
+                  Xwarp.cpp                            \
+                  md5.c
 
 LOCAL_MODULE:= vold