Start statsd before starting zygote

- zygote needs statsd for logging boot time event.
- statsd starting later leads into stats logging failure which
  is reported by all child processes of zygote later.
  This brings lots of noise in statsd error.

Bug: 159664734
Test: reboot and check if error log does not show up
  E statsd  : Found dropped events: 1 error -19 last atom tag 240 from uid 10169
Change-Id: Ie585febb50a9668671c8fda41a872595baae8385

Former-commit-id: 6423ccd96be44d148466787f7419bc078b08c8b5

rootdir/init.rc

@@ -821,20 +821,23 @@ on zygote-start && property:persist.sys.fuse=""
 on zygote-start && property:ro.crypto.state=unencrypted
     # A/B update verifier that marks a successful boot.
     exec_start update_verifier_nonencrypted
+    start statsd
     start netd
     start zygote
     start zygote_secondary
 
 on zygote-start && property:ro.crypto.state=unsupported
     # A/B update verifier that marks a successful boot.
     exec_start update_verifier_nonencrypted
+    start statsd
     start netd
     start zygote
     start zygote_secondary
 
 on zygote-start && property:ro.crypto.state=encrypted && property:ro.crypto.type=file
     # A/B update verifier that marks a successful boot.
     exec_start update_verifier_nonencrypted
+    start statsd
     start netd
     start zygote
     start zygote_secondary