Add /data/misc/perfprofd to store perf profile.

BUG: 19483574

Change-Id: Ib5eb9e789c063bd76d24181c4c03652f9ef12cb7
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 657ef16..9fe1b4f 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -260,6 +260,7 @@
     mkdir /data/misc/ethernet 0770 system system
     mkdir /data/misc/dhcp 0770 dhcp dhcp
     mkdir /data/misc/user 0771 root root
+    mkdir /data/misc/perfprofd 0775 root root
     # give system access to wpa_supplicant.conf for backup and restore
     chmod 0660 /data/misc/wifi/wpa_supplicant.conf
     mkdir /data/local 0751 root root