Use :manage permission to set course friendly name
Use :manage permission to set course friendly name

because we specifically want teachers who aren't allowed to
rename courses to be able to set the friendly name

test plan:
 - in the root account settings, check
   "Don't let teachers rename their courses"
 - As a teacher who is not an account admin, go to course
   settings in a K5 subject course
 - the name and course code should not be editable, but the
   friendly name should be editable
 - you should be able to edit and save the friendly name and
   it should appear to people enrolled in the course

fixes LS-2617

Change-Id: I2de01f0ff15b362c4ba4fc8b65ccbd74e7aef382
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/273179
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Reviewed-by: Nate Armstrong <619b324efbf5f7848de055bdc8bef4c0dd7c8ef5@instructure.com>
QA-Review: Nate Armstrong <619b324efbf5f7848de055bdc8bef4c0dd7c8ef5@instructure.com>
Product-Review: Jeremy Stanley <b3f594e10a9edcf5413cf1190121d45078c62290@instructure.com>

sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms