Merge topic 'ccmake-backspace-field-edit-ctrl-h'

319eade1c2 ccmake: Accept Ctrl+H as Backspace in cache-entry field editor

Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Acked-by: Eyal Rozenberg <eyalroz1@gmx.com>
Merge-request: !12421