msm: mdss: change retire fence signaling

Signal retire fence on first vsync after frame has been programmed to
hardware. This indicates when the frame starts being fetched by
MDSS hardware.

Signed-off-by: Adrian Salido <salidoa@google.com>
(cherry picked from commit 80d5d7558ac98c56527cb1040dab3fc5f438ab51)
Git-commit: 80d5d7558ac98c56527cb1040dab3fc5f438ab51
Git-repo: https://android.googlesource.com/kernel/msm.git


Change-Id: Ib69f64ff17a1609b67ff34ef277f658bfa5cfb5a
Signed-off-by: Nirmal Abraham <nabrah@codeaurora.org>