drm/msm/dp: add connector type to enhance debug messages

DP driver is a generic driver which supports both eDP and DP.
For debugging purpose it is required to have capabilities to
differentiate message are generated from eDP or DP. This patch
add connector type into debug messages for this purpose.

Changes in v3:
-- replace original patch into 3 patches

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1643828199-8564-2-git-send-email-quic_khsieh@quicinc.com


Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>