init.rc: create /data/vendor* earlier

A recent change moved creating /data/vendor/tombstone earlier than
/data/vendor was created, which would cause /data/vendor/tombstone to
not be created until the second time a device boots, instead of the
first.

This change moves the creation of /data/vendor* earlier, allowing
/data/vendor/tombstone to be created on the first boot.

Bug: 169659307
Test: boot CF for the first time and see /data/vendor/tombstone is
      created
Change-Id: I53ee8fbc282bc533d50756ebb4cc65a5ca582088