Start accepting volume UUIDs from framework.

We're now parsing and passing through volume UUIDs sent across the
command socket.  The "!" argument value is treated as null, which
means internal storage.

Bug: 19993667
Change-Id: I17729a769ce687a2e94e85991a6338c77ded0b66
diff --git a/cmds/installd/commands.cpp b/cmds/installd/commands.cpp
index ea59f5b..32a03f4 100644
--- a/cmds/installd/commands.cpp
+++ b/cmds/installd/commands.cpp
@@ -1542,8 +1542,7 @@
     return -1;
 }
 
-// TODO: extend to know about other volumes
-int restorecon_data(const char* uuid __attribute__((unused)), const char* pkgName,
+int restorecon_data(const char* uuid, const char* pkgName,
                     const char* seinfo, uid_t uid)
 {
     struct dirent *entry;