drm/amd/display: Do not program interrupt status on disabled crtc

drm/amd/display: Do not program interrupt status on disabled crtc

BugLink: http://bugs.launchpad.net/bugs/1815234
[ Upstream commit 4ea7fc09539bd2399c1fa7acea14529406120d9e ]

Prevent interrupt programming of a crtc on which the stream is disabled and
it doesn't have an OTG to reference.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>