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/cmds/installd/installd.c b/cmds/installd/installd.c
index 0c80dac..03acafd 100644
--- a/cmds/installd/installd.c
+++ b/cmds/installd/installd.c
@@ -392,7 +392,7 @@
             goto fail;
         }
 
-        if (selinux_android_restorecon(android_media_dir.path)) {
+        if (selinux_android_restorecon(android_media_dir.path, 0)) {
             goto fail;
         }