[COMMON] fimc-is2: move csi dma disable to DMA ISR & modify DMA state

[COMMON] fimc-is2: move csi dma disable to DMA ISR & modify DMA state

CRs-fixed: (CR)

Change-Id: Ifadfe55c34c57c30997e8334b45a19daef5a07c6
Signed-off-by: Wooyeon Kim <wooy88.kim@samsung.com>
Reviewed-on: https://gerrit.mot.com/1336692
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Dawei Wang <wangdw10@motorola.com>
Reviewed-by: Biming Li <libm1@motorola.com>
Reviewed-by: Zhichao Chen <chenzc2@motorola.com>
Submit-Approved: Jira Key