Cache TGS-REPs too

Changes in r25660 inadvertently failed to insert TGS-REPs into the
lookaside cache.  Call finish_dispatch_cache() at the end of
dispatch() to handle this case.

(cherry picked from commit 22206a061dfe55db5cbe2c70190b3bd923d9e615)

https://github.com/krb5/krb5/commit/ac130129d9ce012a6470e1ab637a52b46c033c03
Author: Tom Yu <tlyu@mit.edu>
Commit: ac130129d9ce012a6470e1ab637a52b46c033c03
Branch: krb5-1.10
 src/kdc/dispatch.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)