drm/msm/dsi-staging: enable debug logs during dsi state checks

During state checks in dsi control, enable state machine error
logs by default to catch rarely reproducible issues.

CRs-Fixed: 2170957
Change-Id: I1dd3afeba8bb023e427a4ed15b40d3758b53e885
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Shashank Babu Chinta Venkata <sbchin@codeaurora.org>