msm_fb: display: suspend-resume on HDMI

When HDMI is primary, suspend-resume is not happening.
For HDMI as primary case, early suspend and resume can be
used. This change implements early suspend and resume for
hdmi as primary case.

CRs-fixed: 381097
Change-Id: I7b83d07a8b109294f3606c60f58b760836b88685
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>