msm: sde: correct rotator unload sequence upon error

This patch corrects rotator driver unload sequence to
release memory with proper deallocator and deallocate smmu
resource in reverse allocation order.

CRs-Fixed: 1096831
Change-Id: Ia067c6969d1f323e4b40f553a786b9af0c4aee47
Signed-off-by: Alan Kwong <akwong@codeaurora.org>