msm_fb: display: vsync support for HDMI as primary

When HDMI is primary, dtv is associated with node 0. In this case,
DTV vsync and ctrl need to be called for node 0.

CRs-Fixed: 383877
Change-Id: I425cddf453dd159259883e71f92c32918ca8e6c7
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
1 file changed