Merge pull request #16442 from theanalyst/rgw-admin-tenant-validate

rgw: validate tenant names during user create.

Reviewed-by: Casey Bodley <cbodley@redhat.com>
Reviewed-by: Pritha Srivastava <prsrivas@redhat.com>

diff --cc src/rgw/rgw_admin.cc
Simple merge

diff --cc src/rgw/rgw_rest_s3.cc
Simple merge

diff --cc src/rgw/rgw_rest_swift.cc
Simple merge

diff --cc src/rgw/rgw_user.cc
Simple merge

diff --cc src/rgw/rgw_user.h
Simple merge