msm: camera: reqmgr: Verify the req of two links

The req of two links should be same if current
frame sync with previous frame of sync link, CRM can
do self-correction based on this condition.

Change-Id: Idb208958a850ec1fe12f12443e7ecc2e126970d8
Signed-off-by: Depeng Shao <depengs@codeaurora.org>