drm/msm/sde: turn on clock before esd failure mitigation

Turn on mdp and rsc clocks before updating te
vsync source on MDSS hardware to mitigate the
esd failure.

Change-Id: Idf53f4231231b914d6e6472b06b68b9f745694ad
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>