Revert "mmc: core: do not reinsert prepeared FUA and FLUSH requests in stop flow".

This reverts commit 762211a18930d0a750849cc7f91f3fedb71c9b43.

Change-Id: I8fe3069ae73a45d6f63f2b0bc3b3c99018908f5a
Signed-off-by: Abhinay Reddy Vanipally <avanip@codeaurora.org>