drm/msm/dp: fix controller no-clock register access

While switching controller on, cable may get disconnected
which sets abort flag in controller module. If the abort
flag is set, controller power on is skipped resulting in
related clocks to remain off. In case of suspend/resume,
this can cause an issue as resume assumes that the controller
is already up. Fix it by making sure controller power on
sequence switches the related clocks on. If the abort has
been set, the disconnect sequence switches the clocks off.

CRs-Fixed: 2350611
Change-Id: I1ee4684a69ca23e3741d5505a0a19e40056bd804
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>