https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4935/shard-kbl4/igt@kms_cursor_legacy@nonblocking-modeset-vs-cursor-atomic.html

<7> [404.504660] [drm:intel_hdcp_auth [i915]] KSV list failed to become ready
(-110)
<7> [404.504847] [drm:_intel_hdcp_enable [i915]] HDCP Auth failure (-110)
<7> [404.505023] [drm:_intel_hdcp_disable [i915]] [DP-1:85] HDCP is being
disabled...
<7> [404.508366] [drm:_intel_hdcp_disable [i915]] HDCP is disabled
<7> [404.508583] [drm:_intel_hdcp_enable [i915]] HDCP authentication failed (3
tries/-110)
<3> [404.508789] [drm:intel_hdcp_check_work [i915]] *ERROR* Failed to enable
hdcp (-110)

Why is this test trying to use HDCP? We should make DHCP gets disabled at the
begining of all tests that are not HDCP-related.