healthd: change how charger is launched in recovery.

This is triggered by changes in healthd which spits out 2 binaries.
Recovery needs to use static binary which is now renamed to 'charger'.
So, change the .rc file to match the rename.

Update the seclable according to new healthd-charger split

Test: Tested recovery on angler using 'reboot recovery' to ensure
healthd is working as before

Change-Id: I9e6018156e677e7224dd2e5894941ed2a7cac1d0
Signed-off-by: Sandeep Patil <sspatil@google.com>
diff --git a/etc/init.rc b/etc/init.rc
index b1473ba..faa7b2a 100644
--- a/etc/init.rc
+++ b/etc/init.rc
@@ -82,9 +82,9 @@
     critical
     seclabel u:r:ueventd:s0
 
-service healthd /sbin/healthd -r
+service charger /charger -r
     critical
-    seclabel u:r:healthd:s0
+    seclabel u:r:charger:s0
 
 service recovery /sbin/recovery
     seclabel u:r:recovery:s0