msm: mdss: hdmi: update power module state during probe

Update the state of any power modules that are enabled during
the probe when HDMI is the primary panel and continuous splash is
enabled. This allows the HDMI transmitter core to correctly power
on/off modules during states transitions such as those associated
with runtime suspend and resume.

Change-Id: If2f4fb5837c0a0a380d95be8292b8d5064eaec0f
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>