drm/msm/sde: program COEF_LUT_CTRL register in qseed3lite

For LUT coefficients to take effect COEF_LUT_CTRL register
need to programmed which will swap the LUT contents.
This register is programmed after programming the LUT
coefficients.

Change-Id: I72a8c6699fd6830aa6e8bb7199a2ed8ccbe08032
Signed-off-by: Raviteja Tamatam <travitej@codeaurora.org>
Signed-off-by: Abhijith Desai <desaia@codeaurora.org>