drm/msm/dp: Clean up logs dp_power module

drm/msm/dp: Clean up logs dp_power module

The clk_bulk API already provides error messages indicating which
specific clock in the request for which the operation failed, further
more these errors are associated with the specific DisplayPort
controller (rather than the shared drm_device). The additional error
messages int he dp_power module does thereby not provide any benefit.

While at it, none of the dp_power handles passed to these functions are
dynamic in nature, so there should not be any need for runtime checking
them. Drop these as well.

Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/536938/
Link: https://lore.kernel.org/r/20230515030256.300104-2-quic_bjorande@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>