Convert all selinux_android_restorecon and _setfilecon calls to new API.

libselinux selinux_android_restorecon API is changing to the more
general interface with flags and dropping the older variants.

Also get rid of the old, no longer used selinux_android_setfilecon API
and rename selinux_android_setfilecon2 to it as it is the only API in use.

Change-Id: I1e71ec398ccdc24cac4ec76f1b858d0f680f4925
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
diff --git a/debuggerd/tombstone.cpp b/debuggerd/tombstone.cpp
index c630020..e598ab4 100755
--- a/debuggerd/tombstone.cpp
+++ b/debuggerd/tombstone.cpp
@@ -741,7 +741,7 @@
       LOG("failed to change ownership of %s: %s\n", TOMBSTONE_DIR, strerror(errno));
   }
 
-  if (selinux_android_restorecon(TOMBSTONE_DIR) == -1) {
+  if (selinux_android_restorecon(TOMBSTONE_DIR, 0) == -1) {
     *detach_failed = false;
     return NULL;
   }