mkdir /data/misc/cameraserver for AVD's camera HALs

cameraserver from nyc uses cameraserver as its username.
thus this change is needed for AVD (android virtual device)'s
camera HAL which is attached to cameraserver to work as that
HAL writes some files to /data/misc/media. the backward compatibility
issue should be handled as separate changes. this approach is 
preferred for finer-grained security isolation.

Change-Id: If028667d62df8fcac634ff1001759c39703b00dd
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 3428417..b26e6fc 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -360,6 +360,7 @@
     mkdir /data/local 0751 root root
     mkdir /data/misc/media 0700 media media
     mkdir /data/misc/audioserver 0700 audioserver audioserver
+    mkdir /data/misc/cameraserver 0700 cameraserver cameraserver
     mkdir /data/misc/vold 0700 root root
     mkdir /data/misc/boottrace 0771 system shell
     mkdir /data/misc/update_engine 0700 root root