msm: display: allow fb open even in suspend state

resume might be coming later, allow fb open sucessfully, only
panel driver needs be delayed

(cherry picked from commit 89380aac14332dd3ff39a3f0904bfed117458abc)

Change-Id: Id24112f5bba7ba6290113987ebcc8ba6e4256419
Signed-off-by: Ken Zhang <kenz@codeaurora.org>
Signed-off-by: Siddhartha Agrawal <agrawals@codeaurora.org>