mmc: core: Set reset done after hw reset

Set hw reset flag as done after sdcc hw reset else
hw reset as part of recovery happens only once.

md->reset_done flag is set inside mmc_blk_reset function with
flag MMC_BLK_CQE_RECOVERY. And this flag is cleared only
inside function mmc_blk_reset_success. But since mmc_blk_reset
and mmc_blk_reset_success are used with if else condition, code
flow can execute only one of the function, hence if mmc_blk_reset
is executed and not cleared within mmc_blk_reset_success, next
mmc_blk_reset call returns without resetting the hw.

Change-Id: I14915ae26240769b45cec8d2793e5f8604062eef
Signed-off-by: Ram Prakash Gupta <rampraka@codeaurora.org>