LU-12484 tests: correct typo in test-framework::is_project_quota_supported()

LU-12484 tests: correct typo in test-framework::is_project_quota_supported()

do_facet was misspelled as do_fact on the zfs side.

Change-Id: Idc112802a6817e5128799cb6059040c6b3021791
Signed-off-by: Oleg Drokin <green@whamcloud.com>
Fixes: f172b116885 (LU-10092 llite: Add persistent cache on client)
Reviewed-on: https://review.whamcloud.com/35362
Reviewed-by: James Nunez <jnunez@whamcloud.com>
Reviewed-by: Li Xi <lixi@ddn.com>
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Shaun Tancheff <stancheff@cray.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Patrick Farrell <pfarrell@whamcloud.com>