msm: mdp: Disable early suspend only for the MDP driver

Early suspend is deprecated in the framework but disabling it
completely can affect other subsystems. Disabling only for the
MDP driver.

Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
msm: mdp: Disable early suspend locally

undefing at the header level could mess with other components.

Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>